There are
common misconceptions about alternatives to chlorinated pools.
Many are turning to salt water pools in a belief that it will be
less expensive and lower maintenance. These assumptions are
totally false. If it is sodium hypochlorite pool you desire you
can save money, many headaches and a great deal of time by just
using bleach. Bleach is usually 6% sodium hypochlorite.
A saltwater pool is a sodium hypochlorite chlorine pool rather
than calcium hypochlorite pool. The difference is that you make
the chlorine yourself. Technically, a Salt Water Chlorinator
works by using electrolysis to release chlorine gas from the
salt in your pool water. Two to five hundred pounds of salt is
added to the pool water to achieve a saturation of approximately
3200 parts per million. The salt water is then passed though a
chlorinator cell that is electronically charged and this process
releases chlorine gas from the salt. The chlorine gas then
combines with the pool water to create liquid sodium
hypochlorite chlorine.
If you are considering such a Salt water Chlorinator, there are
a few things you will want to be aware of before you buy. Many
pool stores and builders tend to only mention the pros of these
units. You should know what common problems usually arise and
the reason for them so you can avoid unnecessary disappointment
with this new investment.
This list will help you recognize some of the most common
problems with Salt Water Chlorinators
Many
complain about the inability of reaching the desired
chlorine level. This may be caused from the pool pump/filter
not running long enough for the unit to create the needed
amount of chorine. The factors that increase chlorine demand
are heavy bathing load, sunshine, hot weather, low
stabilizer level.
If
the salt level is too low, then the unit will not produce
enough chlorine.
If
the stabilizer (Cyanuric Acid) level is too low, the
chlorine will not stay in the pool water long and the unit
will not be able to keep up with demand. This is very
common. Many problems occur when the stabilizer (Cyanuric
Acid) levels are too low. 80ppm is recommended by most
manufacturers. In humid climates, as much as 120m ppm may be
necessary to keep the chlorine in the pool. If stabilizer
levels are too low the chorine produced will be burned off
by the sun. Conditioner acts as sunscreen for your chlorine.
You may damage the pools interior surface with high levels
of Cyanuric Acid. High levels of stabilizer will also cause
your skin to itch.
If
salt level is too high the cell might be failing thus giving
a faulty salt reading. The cell may indicate to add salt. If
this is done without double checking the true reading you
can over salt the water. Most systems will not work if the
salinity of the water is too high or too low.
If
phosphates are present in the water (stain removal products
on the market are loaded with phosphates) they are food for
algae. Some may disagree about these products and say they
have no effect. We have seen this on a regular basis and
have the water analysis that tell otherwise. If phosphate
levels are too high, your Salt Water Chlorinator will act as
though it is not creating chlorine. When the chlorinator
creates the chlorine it immediately has to fight off the
algae that is growing, even when it not visible. When this
happens your pool can not catch up and build a reserve of
chlorine in the water. (1-3ppm)