A dehumidifier after flood cleanup can help a lot, but only after you deal with the water that’s right in front of you. If your basement in St. Matthews still has puddles on the floor or your Old Louisville dining room walls are quietly soaking up moisture, plugging in a machine and hoping for the best is not the move. Here’s how to tell when a dehumidifier is useful, when it’s not enough, and how to set it up so your drying effort actually works. For professional help, contact Bear Restoration’s water damage restoration team.

What a dehumidifier can and can’t do after a flood

Here’s the plain answer: a dehumidifier removes moisture from the air, and over time that helps pull moisture out of wet materials. It can speed drying in drywall, framing, subfloors, trim, and indoor air that still feels heavy after water is removed.

What it cannot do is remove standing water, make sewage safe, or fix moisture trapped deep inside walls and flooring systems on its own. Think of it like using your bathroom fan after a hot shower. It clears humid air. It does not mop the floor, replace soaked insulation, or open up a wall cavity that stayed wet too long.

That matters because flood damage often has two layers. The obvious layer is the puddle, soaked carpet, or warped baseboard. The hidden layer is the moisture that traveled under flooring, wicked up drywall, or settled into insulation and framing. A dehumidifier helps with the second layer only after you attack the first one properly.

So yes, a dehumidifier can be part of flood recovery. No, it is not the whole plan.

What you’ll need before you start

Before Step 1, gather what you need so you are not slogging back and forth through a wet room hunting for supplies. A basic setup includes a wet/dry vacuum, fans, gloves, waterproof boots, extension cords rated for the load, trash bags, towels or mops, a camera or phone for documentation, and a safe power source. If you have a hygrometer or moisture meter, even better. A hygrometer reads room humidity. A moisture meter checks how wet materials like drywall and wood still are.

If the loss may turn into an insurance claim, keep a notebook or notes app ready. The simple act of writing down time, date, what got wet, and what you removed can save a lot of headaches later.

Know your flood category first

Not all floodwater is the same, and this changes everything.

Clean water starts from a source like a supply line, sink overflow, or ice maker line. It begins as sanitary water, though the longer it sits, the less clean it becomes.

Gray water is dirtier. Think dishwasher discharge, washing machine overflow, or toilet overflow without solid waste. It may contain soap, food residue, or bacteria, and cleanup gets more cautious.

Black water is the hard stop. Sewage backup, river flooding, and water with waste or heavy contamination fall in this category. If you can smell sewage, see toilet waste, or know the source is contaminated, a dehumidifier is not your main concern. Containment, sanitation, and safe removal come first.

If the flood category moves beyond clean water, DIY drying becomes much riskier.

Know when the house is not safe to enter

Some situations shut the whole process down immediately. If you notice active electrical hazards, a gas smell, ceiling sagging, visible structural movement, standing water around outlets or appliances, or sewage backup, do not keep pushing ahead like it’s a normal cleanup day.

A bowed ceiling can come down. A wet room with live power can shock you. A sewage-contaminated basement can expose you to much more than a bad smell. In those cases, the right first move is staying out until the space is made safe.

Step 1: Make the area safe and document everything

The first hour matters more than most people think. Your two jobs are simple: keep yourself safe and preserve the condition of the loss before cleanup changes it.

Put on gloves and waterproof boots before entering the wet area.
Stop and scan the room for electrical, gas, ceiling, and structural hazards.
Keep children, pets, tenants, or staff out of the affected area.
Take wide photos before moving items.
Take close-up photos of damaged materials and contents.
Write down the time you found the damage and what you know about the source.

That sequence keeps you from destroying evidence or walking into a preventable injury.

Shut off electricity only if you can do it safely

If water is near outlets, appliances, or extension cords, electricity becomes the first serious risk. If your breaker panel is in a dry area and you can reach it without stepping into water, shut off power to the affected area before plugging in any equipment.

If reaching the panel means crossing wet flooring, touching wet walls, or opening a damp electrical closet, leave it alone. The catch is that trying to “just be careful” around electricity is how a cleanup turns dangerous fast.

Success here looks boring, and that’s good. Power is off where it needs to be off, and you are not guessing.

Take photos and notes for your insurance file

Before you haul out boxes or tear up carpet, document the room as-is.

Photograph the entire room from multiple corners.
Capture water lines on drywall, trim, doors, and furniture legs.
Photograph soaked flooring, rugs, baseboards, and contents.
Take close shots of appliance model and serial numbers if an appliance caused the loss.
Note the date, time discovered, and suspected source.
Save photos in one folder so nothing gets scattered.

Try to include the details that disappear first. A faint brown water line on drywall, a swollen cabinet toe-kick, a damp cardboard box in the basement storage area, those things can be hard to prove after cleanup starts.

Separate salvageable items from obvious loss items

Once you have photos, start clearing the space in a way that helps drying instead of making a larger pile of chaos.

Move dry or lightly damp items to a clean, dry area.
Set aside hard, non-porous items for cleaning.
Bag obvious trash, like soaked cardboard, ruined paper goods, and cheap porous items.
Keep fabric, rugs, and contents grouped by condition so nothing gets mixed up.
Leave severely contaminated items in place if sewage is involved.

The goal is not to make perfect decisions in the moment. The goal is to reduce moisture load in the room and create access for extraction and airflow.

Step 2: Remove standing water before using a dehumidifier

A dehumidifier is not a pump. Trying to dry standing water with one is like trying to empty a kiddie pool with a sponge, technically possible in theory, absurd in practice.

Get bulk water out first.
Extract water from carpets and padding.
Remove soaked porous items that keep releasing moisture.
Only then start dehumidification.

If you skip this order, the room stays wet longer, materials swell more, and mold gets a head start.

Use pumps, a wet/dry vacuum, towels, and mops in the right order

Different water depths call for different tools.

Use a submersible pump for deep standing water, especially in basements.
Switch to a wet/dry vacuum once water is shallow enough to vacuum safely.
Use towels and mops for the final film of water left on hard floors.
Empty collection tanks far from the affected area, not into a nearby sink that may still be part of the problem.

If your kitchen had an appliance leak, you may only need the vacuum and towels. If your lower level in the South End took on several inches after a storm, a pump is usually the fastest first move.

Checkpoint: after this step, you should not see puddles or hear water sloshing underfoot.

Pull water from carpets and padding fast

Carpet lies to you. The top can feel just damp while the pad underneath is holding a huge amount of water.

Use a wet/dry vacuum to extract as much water as possible from the carpet surface.
Lift a corner to check the pad underneath.
Continue extraction until the vacuum is pulling much less water.
If the pad is saturated, plan to remove it rather than hope air will save it.

Air moving over wet carpet helps a little. Extraction matters much more. Without it, the carpet and pad keep feeding humidity back into the room like a soaked sponge on your counter.

Remove soaked rugs, boxes, and porous clutter

Anything that absorbed water and stays in the room becomes part of the problem.

Roll up soaked area rugs and move them out for separate drying or disposal.
Remove wet cardboard boxes, paper, books, and stored fabrics.
Discard low-value porous items that are heavily saturated.
Clear the floor perimeter so air can reach baseboards and walls.

Older Louisville basements often hold exactly the stuff that slows drying most, stacked boxes, old rugs, spare linens, and decades of storage pressed against exterior walls. Pulling that clutter out can improve drying more than adding one more fan.

Step 3: Decide whether a dehumidifier will actually help in your situation

Once standing water is gone, you can make the real call. Is a dehumidifier going to move this job forward, or is the problem bigger than air drying?

Use a dehumidifier if water is removed but the room and materials still hold moisture.
Do not rely on a dehumidifier if contamination, hidden saturation, or active leaking is still happening.
Adjust your decision based on the building type, materials, and local humidity.

When it helps

A dehumidifier helps most when the visible water is gone but the room still feels damp, cool, sticky, or musty. That usually means moisture is still evaporating out of drywall, framing, subfloor, trim, and furnishings.

It also helps when outdoor humidity is high, which is common during Louisville summers. If you open windows on a muggy July day thinking fresh air will dry the room faster, you can end up doing the opposite. The dehumidifier works better in a closed space where it can keep pulling moisture out instead of fighting the weather.

When it doesn’t

A dehumidifier does not solve an active leak. If a supply line is still dripping behind a wall or stormwater is still entering through a foundation crack, the machine is just chasing water that keeps coming back.

It also does not fix sewage contamination, saturated insulation inside closed walls, badly swollen hardwood, or floodwater that sat too long before cleanup. In those situations, the issue is not just humidity. It is contamination, trapped moisture, material failure, or all three.

If the room smells worse by the hour, floorboards are cupping, or insulation behind drywall stayed soaked, a box-shaped machine in the middle of the room is not enough.

Louisville-area situations that change the answer

Local buildings and weather make a difference. A dry ranch house in winter behaves differently than a humid basement in Crescent Hill in August.

Older plaster-and-lath homes can hide moisture longer than newer drywall construction. Basements and crawl spaces often stay humid even after the obvious water is removed. Brick exteriors, older trim details, and packed storage areas can slow air movement and hide damp pockets. That means a dehumidifier may still help, but you need a sharper eye for what it cannot reach.

Step 4: Choose the right dehumidifier for the space

The wrong machine wastes time. After a true flood, undersized equipment is one of the most common reasons drying drags on.

Estimate the size of the space.
Consider how wet the materials still are.
Factor in ceiling height and weather.
Choose a unit with enough capacity for real post-flood moisture, not normal day-to-day comfort.

Residential vs. commercial dehumidifiers

A typical store-bought residential dehumidifier is built for ongoing humidity control, like a mildly damp basement. It can help in a smaller, lightly affected room.

A commercial dehumidifier is built for flood recovery. It pulls more moisture, handles longer runtimes, and usually stands up better to nonstop use. If you are drying a finished basement, rental unit, or small commercial suite, commercial equipment is often worth the rental cost because speed matters.

If you have tenants waiting, flooring at risk, or insurance timelines in motion, slow drying gets expensive fast.

Match the unit to room size and severity

Square footage is only part of the picture.

Measure the affected area, including connected spaces you plan to dry together.
Notice ceiling height, because more air volume means more moisture to remove.
Check how wet materials are, not just how large the room is.
Account for weather, especially high outdoor humidity.
Size up if carpet, drywall, wood, and contents all got wet at once.

A lightly damp bedroom and a heavily soaked basement may be similar in size but need very different equipment. Severity wins.

Decide whether to rent or buy

Buying makes sense if you already deal with chronic basement moisture or seasonal dampness and know the machine will get used again. Renting makes more sense for one-time flood recovery, larger losses, or situations where you need stronger equipment for a short window.

If an insurance claim is involved, faster drying can matter more than ownership cost. A rental commercial unit for three days is often cheaper than replacing more material because a small unit took too long.

Step 5: Set up the dehumidifier for the best drying results

Placement and setup decide whether the machine helps or just hums in the background while the room stays wet.

Put the unit where air can circulate.
Set up drainage so it can run continuously.
Close the space to outside humidity.
Set a realistic humidity target and monitor it.

Place the unit where air can move freely

Do not jam the dehumidifier into a corner or press it against a wall. Give the intake and exhaust room to breathe.

Place the unit near the center of the drying zone when possible.
Leave clear space around the sides and back.
Keep furniture, curtains, and boxes away from the intake.
Reposition if one side of the room stays much wetter than the rest.

The machine needs to pull damp air in, remove moisture, and send drier air back out. If the intake is blocked, performance drops fast.

Set up continuous drainage if possible

Bucket operation is fine for mild humidity. After flood cleanup, it gets annoying in a hurry.

Connect a drain hose if your unit supports it.
Run the hose to a floor drain, sink, tub, or pump basin that is safe to use.
Make sure the hose slopes downward without kinks.
Test the drain path before leaving the unit unattended.

A full bucket can stop the machine in the middle of the night, which means hours of lost drying time. Continuous drainage keeps things moving.

Close windows and exterior doors

This trips up a lot of people. The room feels stale, so the instinct is to open windows and let it “air out.” On a dry, cool day, that can sometimes help. In Louisville summer humidity, it often makes things worse.

Shut exterior doors and windows in the drying area.
Seal off obvious outside air leaks if possible.
Let the dehumidifier control the indoor moisture load instead of fighting outdoor air.

If the machine is drying one room while muggy air keeps drifting in from outside, it is running uphill.

Set the humidity target

Relative humidity means how much moisture the air is holding compared with how much it could hold at that temperature. You do not need to get more technical than that.

For post-flood drying, aim to bring the space down into roughly the 30 to 50 percent range, then maintain a stable level as materials continue drying. During active drying, you are looking for downward progress, not perfection in the first few hours.

Checkpoint: if humidity readings start dropping and the room feels less sticky within the first day, your setup is likely helping.

Step 6: Add air movement without creating new problems

Fans and dehumidifiers work best together. The fan helps moisture leave wet surfaces. The dehumidifier removes that moisture from the air.

Use fans to move air across damp materials.
Avoid aggressive airflow in contaminated conditions.
Manage doors based on how you want the drying zone to behave.

Position fans to move air across wet surfaces

Do not aim every fan randomly into the center of the room.

Point airflow across wet flooring, baseboards, and lower wall sections.
Angle fans so damp air moves toward the dehumidifier’s general zone.
Use enough airflow to keep surfaces evaporating, but not so much that loose debris blows around.
Reposition daily as different materials dry.

The trick is surface evaporation. If moisture does not leave the material, the dehumidifier has nothing to remove.

Avoid blowing contaminated water through the space

If the water involved sewage, heavy debris, or visible mold, fan use needs more caution. Strong airflow can spread particles and odor through adjoining rooms.

In those cases, limit air movement until contaminated materials are removed or isolated. Drying is still necessary, but not at the cost of pushing contamination farther into the property.

Keep interior doors open or closed based on the drying zone

Sometimes you want one room isolated. Sometimes you want connected areas included.

Keep doors closed if only one room is wet and you want the dehumidifier focused there.
Open interior doors if nearby spaces are also damp and you have enough equipment to dry the larger zone.
Recheck humidity in adjoining rooms so moisture is not just migrating elsewhere.

If one wet bedroom opens into a hall and the hall starts feeling muggy, your drying zone may need to expand.

Step 7: Remove materials a dehumidifier cannot dry in place

Air can dry air. It cannot magically save every material.

Remove saturated materials that trap moisture.
Open up assemblies when hidden wetness is likely.
Protect flooring systems that can fail from below even if the surface looks better.

Pull wet carpet pad, insulation, and swollen baseboards when needed

Carpet pad often needs to go if it stayed saturated. So does wet insulation in many cases. Swollen MDF or composite baseboards usually do not return to normal shape after getting soaked.

Leaving those materials in place keeps moisture and odor trapped in the structure. Even if the room starts to feel drier, the problem may still be sitting behind the trim.

Check drywall for wicking and hidden moisture

Drywall pulls water upward. This is called wicking, and it can carry moisture well above the floor line.

Look for staining, swelling, softness, or a visible water line.
Press gently near the bottom edge to check for softness.
If moisture rose into the wall cavity, plan for opening the wall rather than pretending the face alone will dry.

Cut lines are often made above the highest wet point to remove damaged material and expose the cavity. If the flood was more than minor, closed-wall drying is often incomplete without some opening.

Protect hardwood, laminate, and engineered flooring

Wood and wood-look floors are especially tricky after flood damage. Surface drying can make them look better while moisture remains trapped underneath.

Watch for cupping, crowning, buckling, lifting edges, or hollow sounds. Those are signs water may be sitting below the visible surface. A dehumidifier helps the room. It does not guarantee the layers under the flooring are drying evenly.

Step 8: Monitor drying progress day by day

Flood drying should not be guesswork. You need a simple way to tell if things are improving.

Check the room at least once a day.
Notice changes in feel, smell, and visible dampness.
Use measuring tools if you have them.
Keep a short drying log for repair and claim purposes.

Use touch, smell, and visible clues

Your senses tell you a lot.

A drying room should gradually feel less swampy and smell less musty. Surfaces that were clammy should start feeling cooler and drier. Damp spots on drywall or subfloor should shrink, not spread. If things still feel soggy or the smell gets sharper, something hidden may still be feeding moisture.

Use a hygrometer or moisture meter if you have one

A hygrometer tells you the room’s humidity. A moisture meter checks how wet a material still is below the surface.

Use the hygrometer in the same area at the same time each day so the trend means something. Use the moisture meter on suspect areas like lower drywall, subfloors, trim, cabinets, and wood framing if accessible. If readings stay stubbornly high, your equipment or removal plan may need to change.

Keep a simple drying log for insurance and repairs

This does not need to be fancy.

Write down daily humidity readings if available.
Note when equipment was started, moved, or shut off.
Track materials removed, like pad, drywall, or baseboards.
Save daily photos from the same angles.
Record odor changes or hidden moisture findings.

A clean timeline helps if questions come up later about what got removed, how long the room stayed wet, or why more repair became necessary.

Step 9: Watch for signs that the dehumidifier is not enough

Sometimes the room tells you early that you are underpowered or missing hidden damage. Listen to that.

Watch humidity and comfort after the first day or two.
Pay attention to odor trends.
Check for dampness below surfaces, not just on top.

Humidity stays high after 24 to 48 hours

If the room still feels swampy after extraction, fan use, closed windows, and continuous dehumidifier operation, something is off. The unit may be too small, hidden wet materials may still be in place, or the space may be taking in new moisture from a leak or outside air.

A decent setup should show progress within the first day. Not total dryness, just clear movement in the right direction.

Musty odor gets stronger instead of weaker

A stronger smell is a warning, not a normal part of drying. It can mean hidden carpet pad, wet drywall cavities, contaminated materials, or early mold activity.

If odor rises while the machine runs, the issue is usually not “needing more time.” It is needing a better look behind or under something.

Materials stay damp below the surface

Subfloors, wall cavities, cabinet bases, crawl spaces, and underlayment are common trouble spots. The room can feel better while those areas stay wet.

If lower cabinets remain swollen, baseboards keep softening, or floor edges keep lifting, assume moisture is still trapped where your dehumidifier cannot directly reach it.

Step 10: Know when a dehumidifier should not be your main plan

This is the line in the sand. If any of these conditions apply, a dehumidifier can still play a supporting role, but it should not be your main strategy.

Sewage or black water is involved.
Walls, ceilings, or insulation are saturated.
The loss is large, repeated, or operationally complicated.

Sewage backups and black water

Sewage changes the cleanup rules right away. Drying the air does nothing about pathogens, contamination in porous materials, or the need for safe disposal.

If wastewater backed up into a basement bath or floor drain, focus first on containment, safe removal, and sanitation. A dehumidifier can come later, after the hazardous material side of the job is handled.

Flooded walls, ceilings, and insulation

Water inside walls and ceilings often requires opening, targeted drying, or removal. Wet insulation especially tends to hold water and lose value as an insulator.

One machine in the room cannot reliably dry a soaked wall assembly that remains sealed up. If water came from above, from behind, or through the cavity itself, assume hidden saturation until proven otherwise.

Large losses, repeated flooding, and commercial spaces

Big square footage, multiple rooms, tenant-occupied units, retail downtime, or repeat basement flooding all push the situation out of simple DIY territory. You are not just drying a room. You are managing loss scope, habitability, timing, and in some cases code and documentation issues.

That is where a structured drying plan matters.

Step 11: Clean and prevent mold once drying is underway

Once moisture starts dropping, cleanup shifts from emergency response to prevention. This is where small mistakes, especially cosmetic shortcuts, can cost you later.

Clean salvageable hard surfaces.
Remove what cannot be safely or effectively saved.
Keep drying until materials are truly dry, not just less obvious.

Clean hard surfaces the right way

Non-porous surfaces like metal, sealed tile, glass, and some plastics can often be cleaned and dried successfully.

Wipe them down, remove visible dirt or residue, and dry them fully. Do not rely on a quick spray and walk away. Flood cleanup is not a one-pass disinfecting wipe situation if residue and moisture are still present.

Porous materials that stayed contaminated or heavily saturated are a different story. Many need removal, not surface cleaning.

Lower the chance of mold in the next few days

Mold prevention is mostly about drying speed and moisture control. Get wet materials out fast, keep humidity down, and do not leave hidden dampness sealed inside walls or under flooring.

If the room dries promptly and the moisture source is stopped, mold risk drops sharply. If dampness lingers in enclosed materials, the clock keeps ticking.

Don’t paint or seal over damp materials

Painting over a damp stain or sealing a wall that still has moisture inside may make the room look better for a week. After that, the trapped moisture usually wins.

Peeling paint, lingering odor, and hidden deterioration are common results. Dry first. Repair second. Finish last.

Step 12: Stop the source so the room doesn’t get wet again

A dehumidifier can help you recover from a flood. It cannot protect you from the next one if the source stays in play.

Identify what caused the water intrusion.
Fix or isolate that source.
Protect nearby rooms and contents while repairs are pending.

Check plumbing, appliances, gutters, and grading

Go back to the cause with fresh eyes.

A burst supply line, a failed water heater, a washing machine hose, a roof leak, clogged gutters dumping water near the foundation, poor grading that sends stormwater toward the house, any of these can restart the whole problem. If the room keeps getting new moisture, drying results will stay frustrating no matter how good the equipment is.

Address basement and crawl space moisture patterns

Lower levels in Louisville often deal with more than one moisture source at once. You can remove floodwater and still have humid air, groundwater pressure, or poor drainage keeping the area damp.

That is why some basements seem “mostly dry” but never really feel right afterward. If the smell hangs on or humidity rebounds, recurring lower-level moisture may still be part of the story.

Protect nearby rooms and contents

Move furniture off damp floors. Use foil blocks or pads under legs. Pull stored contents away from exterior or basement walls. Check adjoining drywall and trim for moisture migration.

Water rarely respects room boundaries. Catching spread early is a lot easier than repairing one more room next month.

Step 13: Decide when to call for professional help

There comes a point where the smartest move is handing the job off, not because you did something wrong, but because the situation needs more than consumer equipment and visual checks.

Escalate sooner when hidden moisture is likely.
Escalate sooner when claim documentation needs to be tight.
Escalate sooner when health concerns are part of the picture.

Call sooner for hidden moisture and specialty materials

Plaster, hardwood, insulation, built-ins, finished basements, and layered flooring systems often need more than a store-bought setup. These materials hide moisture well and can be expensive to guess wrong on.

If you are dealing with old plaster walls in Old Louisville or a finished lower level with trim, cabinets, and multiple material layers, getting professional drying input early can prevent a lot of unnecessary replacement or missed damage.

Call sooner if your insurance adjuster needs documentation

Insurance questions often come down to evidence. Moisture readings, equipment logs, removal notes, and photos taken over time can support what happened and why certain materials had to come out.

If you need clearer documentation than you can comfortably produce, that is a practical reason to escalate.

Call sooner if occupants have health sensitivities

Strong odors, sewage exposure, asthma, respiratory sensitivity, or immune system concerns raise the stakes. In those cases, speed and thoroughness matter more than squeezing every last bit of DIY value out of the process.

If the space smells wrong and someone’s health is part of the equation, treat that as a real decision point.

Troubleshooting common dehumidifier problems after a flood

Even when a dehumidifier is the right tool, setup issues can make it seem useless. Most of the time, the problem is not the idea of dehumidification. It is one fixable detail.

The bucket fills too fast or the machine keeps shutting off

If the bucket is filling every few hours, that usually means the machine is actually pulling a lot of moisture, which is good. The annoying part is the shutdown.

Switch to continuous drainage if the unit supports it. Check that the float switch is not stuck and that the hose is not kinked. Also make sure the outlet is not overloaded, especially if fans and the dehumidifier are all sharing one questionable extension cord.

The room still feels damp after a full day

Start with the obvious suspects. Standing water may still be trapped in carpet or under furniture. The unit may be too small for the room and saturation level. Windows or exterior doors may be open. Wet pad, insulation, drywall, or boxes may still be sitting in place.

Go back through the sequence. Extraction first, removal second, dehumidification third. If that order got skipped, correct it before assuming you need a miracle machine.

Frost, poor airflow, or weak moisture removal

Check the filter. Make sure the intake is not blocked by walls, curtains, or stored items. Confirm the room is warm enough for the unit to operate properly, because some dehumidifiers struggle in cooler spaces.

If airflow feels weak, clean what you can safely clean and move the unit to a more open position. A machine pressed into a corner often looks busy while doing very little.

The smell is getting worse

A worsening smell usually points to hidden wet material, contamination, or early mold, not “normal drying.” Recheck carpet pad, baseboards, lower drywall, cabinets, and any area where water could be trapped out of sight.

If the odor has a sewage character, stop treating the job like a simple damp-room problem. If it is a deepening musty smell, assume something stayed wet behind a finished surface.

What results to expect and what to do next

When drying is working, the room starts feeling noticeably less heavy, surfaces stop feeling clammy, humidity readings trend down, and the smell improves instead of deepening. That does not mean every material was saved. It means your environment is moving back toward stable, repair-ready conditions.

From there, repair removed materials, keep checking humidity for a few more days, and watch for any rebound in odor or dampness. If you try one thing first, make it this: remove standing water completely before expecting any dehumidifier to help. That single move changes the whole job.