Water moves from the pool, into the
circulating pump, part of the circulating pump discharge goes to the booster
pump and the remainder enters the filtration system. See the
schematic at the
bottom of this page. When the water leaves the filter, some enters the in-line
chlorinator where it is exposed to chlorination tablets. The amount of
water going through the chlorinator is a function of the position of the 0 to 10
dial located at the chlorinator base. If you have a heater installed, the
water flows through the heater coils and re-enters the pool.
Water moves from the pool to the
circulation pump from two sources. The skimmers, located on opposing sides
and ends of the pool and from the pool bottom suction. Skimmers are
provided for the purpose of removing floating debris from the water and use of
the bottom suction ensures complete circulation of the pool contents avoiding
stagnation. Under normal circumstances, both suctions should be open.
When the water leaves the filter, it
can be directed back to the pool or to the pool drain system. During
filter backwashing, the water and filtration system solids are directed to the
drain. If it is necessary to empty the pool, the skimmer suctions should
be closed to avoid cavitation of the pump which can cause seal damage.
Cavation means that the pump receives air along with water and loses suction
causing it to generate excessive heat.
WARNING: Under no circumstance
should the pool be emptied without direction of a qualified professional like
Sam. Because of the high water table in our area, the pool can actually
"float" and become pushed part way out of the ground with devastating results.
In an emergency situation, the pool level could be lowered to approximately the
half full position with reasonable safety.