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Wipe Away Indoor Pool Humidity Problems With A Swimming Pool Dehumidifier

Does your indoor swimming pool feel uncomfortably warm and humid?

Have you noticed condensation on your windows and a strong smell of chlorine in the air?  If so, chances are good that you have improper dehumidification and ventilation in your pool room area.


The climate surrounding an indoor swimming pool is very moisture laden.  Indoor pools and spas continuously produce large quantities of water vapor through the evaporation process.  Picture the water surface of your pool as a large humidifier capable of adding significant amounts of moisture to your pool room whenever the dew point of the air is less than the water temperature.  This is referred to as surface condensation.  It’s important to keep the pool water temperature lower than the air temperature.  If not, you’re going to have additional energy costs because the pool is heating the room space.  This will also create inevitable moisture problems.  You should follow the ASHRAE recommended standard for relative humidity by maintaining a RH level between 50%-60%.

CondensationWithout effective dehumidification and ventilation systems, you risk the appearance of mold, corrosion, structural damage and an uncomfortable pool environment.  Along with a properly sized swimming pool dehumidifier, it should be emphasized that some form of ventilation is essential, regardless of your pool room design.  When air leakage carries water vapor into walls and ceilings, it is called interstitial condensation.  This type of concealed condensation causes pool room deterioration in the form of corrosion.  Warm, moist air combined with chlorine from pool chemicals attacks ferrous metals and accelerates damaging corrosion.  As the chlorine laden water vapor permeates the walls of your pool room, it will start to deteriorate cement blocks, mortar joints and bricks.  All metal objects, including doors and light fixtures, are subject to chlorine induced corrosion.

Once again, the primary source of high humidity in a pool room is water evaporation from the pool surface.  This is why, besides using a swimming pool dehumidifier, it’s highly recommended that you use a pool cover when the pool is unoccupied.  Another issue in pool rooms caused by high humidity levels is wood rot.  Many indoor pools and spas use natural wood in the interior of the pool room.  Without effective dehumidification, this pricy investment runs the risk of serious deterioration.

4 Common Indicators Of Humidity Problems In Your Indoor Pool or Spa Room:
  1. You find it uncomfortably humid in the pool area when in street clothes
  2. Strong and persistent smell of chlorine
  3. Foggy windows
  4. Rust on metal objects

Keep your indoor pool environment comfortable and protect your investment with a properly sized swimming pool dehumidifier.  Examine the HI-E Dry line to see how these reliable and energy efficient units can save you money.

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Find Out How A Swimming Pool Dehumidifier Can Prevent Mold, Rust and Wood Rot

Mold, rust and wood rot are common aliments of many indoor swimming pools.  Unless you know the warning signs to look for, these three invaders can remain hidden, causing costly damage to your pool or spa room.

Your pool room provides mold with three essential criteria required for a mold colony to establish itself and grow: moisture, warmth and organic matter for food (carpet, cloth, wood, paper, etc.).  Without a properly sized swimming pool dehumidifier and good ventilation, mold spores can invade all surfaces in your pool room.

Mold feeding on moisture from a indoor pool

Mold is not only unsightly, but often produces unpleasant musty odors.  Many people also report allergic reactions and hypersensitivity to mold exposure.

Another villain lurking in your pool room is rust or corrosion.  Indoor pools and spas with poor dehumidification and ventilation are especially vulnerable to corrosion problems.   Chlorine from pool chemicals reacts with condensed water to form hydrochloric acid, accelerating the damage to metal objects.  Rust can form on metal doors, furniture and light fixtures.  When relative humidity levels reach 62% or above for extended periods of time, serious structural damage can occur.  Damage to steel structural supports can lead to catastrophic results like a collapsed roof. Inadequate ventilation allows warm, chlorine-laden air to drift to the ceiling, corroding structural supports.

Another form of deterioration of your pool room due to improper dehumidification is wood rot.  Although wood rot may not lead to devastating destruction like roof collapse, it can cause very expensive repairs, depending on the type of wood used.  Wood rot (decay) requires moisture to decay the wood.  The moisture-heavy air from an indoor pool provides a veritable banquet for the decaying process.

Many indoor swimming pools and spas use wood for window frames.  Without proper dehumidification and ventilation systems, foggy windows will soon lead to discolored, cracked and/or warped wood.  Once detected, the damaged wood must be replaced or the rot will continue to spread.  Once again, depending on the type of wood being used, this could be a very expensive repair bill.

Warning Signs That Your Indoor Pool has Improper or Ineffective Dehumidification:

>> Foggy windows

>> Mold spots

>> Wet walls

>> Loose floor tiles

>> Saggy suspended ceiling

>> Blistering or peeling paint or warped wood on window sills

>> Rust on lighting fixtures, door frames or metal furniture

Wood Rot Caused by Swimming Pool Humidity

Protect your investment with a high efficiency swimming pool dehumidifier.  Call the experts at and let them help you to correctly size the right dehumidifier for your pool or spa. 

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