ALTHOUGH
THE DRY-AIR HEAT
EXCHANGERS ARE VERY
RESISTANT TO AGGRESSIVE
WATER, AN IMBALANCE
IN THE
POOL WATER pH CAN CAUSE FAILURE.
CAUTION:
1. Chemical levels in the pool water must be
maintained within acceptable limits at all times to avoid
health hazards and/or possible equipment damage. Chlorine
levels in excess of 6 PPM (parts per million) are to be
avoided. pH levels below 7.2 and above 7.6 are to be
avoided.
2. The stainless steel plate heat exchangers should
not be used on salt water pools with a level of salt in excess of 5000
PPM . Doing so will void the warranty and the manufacturer
will take no responsibility for pool, dehumidification system
and /or heat exchanger damage.
3. Automatic chemical feeders should never be installed
up
stream of the system' s heat exchangers. Super chlorinated
water, such as produced by such feeders, can destroy the
heat transfer surface within the exchanger. When automatic
chemical feeders are installed downstream of the heat
exchanger, certain precautions must be taken to prevent
heat exchanger damage. A check valve (non-metallic) must
be installed in the water piping between the heat exchanger
and the chemical feeder. This will prevent the super
chlorinated water in the chemical feeder from draining back
into the heat exchanger when the pool water pump is shut
off.
SWIMMING POOL CHEMISTRY
The following relates to common problems and misconceptions regarding swimming pool odors and chemistry. What is a Chloramine? A Chloramine is the by-product or waste product after it has done it's work. If these are allowed to form, they create typical swimming pool odors.
FACT # 1. Chlorine odors are NOT caused by too much chlorine in the water.
FACT # 2. Chlorine odors are caused by NOT ENOUGH chlorine in the water.
FACT # 3. The chlorine smell in pool environments is caused by a pH imbalance which allows the chloramines to form which then evaporate into the air attaching themselves to the walls and ceiling.
FACT # 4. Purging the entire room with fresh outside air WILL NOT get rid of the chloramine odor completely. This can only be done by washing down all the surface areas.
FACT # 5. Chlorine odors are not related to the dehumidification system.
HOW TO PREVENT CHLORINE ODORS IN POOL ENVIRONMENTS?
NOTE: Regardless of how sophisticated the automated chemical system is, prevention is accomplished only by *MANUAL MONITORING to maintain proper pH levels FIRST and chemical additives SECOND.
IMPORTANT: REGARDLESS OF THE AMOUNT OF CHEMICALS IN THE WATER, WHEN THE pH LEVEL GETS BELOW 7.4, CHLORAMINES WILL BEGIN TO EVAPORATE TO THE SPACE.
The FIRST step is to maintain the ALKALINITY LEVEL!
Where should the ALKALINITY level be?
Between 140 - 160 PPM, WHICH IS OFF THE RECOMMENDED LIMITS OF MOST TEST KITS. (You must achieve the 140-160 OR HIGHER - ALKALINITY level before any chemicals are added). It is therefore paramount that in warm water and high density usage, close monitoring is the key. (During high usage, water should be *MANUALLY checked every 2 to 3 hours). The steps are simple.(If you keep it there, you will prevent most of the problems.) SECOND: CALCIUM HARDNESS: 160-180 PPM. THIRD: Shock with chlorine or bromine to proper levels. New water. (1 pound of Cal-Hypo per 10,000 gallons). When the level of chlorine gets to about 3 PPM, Turn on the Chlorinator.
*IMPORTANT: DAYTIME MAINTENANCE If the chlorine level drops below recommended sanitary levels, a booster will be needed. This is done by broadcasting Di-Chloro or liquid chlorine (not recommended), into the water away from the swimmers. during the day. A final check after closing with additives as needed for the next day. If this is done properly, there should not be a trace of chlorine odor in the pool environment.
For additional information, contact PoolMart, Pete Gannon.
