Standard Pools - Laguna
Laguna is an overflow design pools.
Pools that do not have
skimmers normally have what is called an overflow system. A
channel is constructed around the edge of the pool and inside
this channel there are drains (normally called gutter drains)
which collect the water and convey it to a balancing tank
(surge tank). This is a collecting vessel, which can be made of
fiberglass, plastic or concrete depending on the size and
nature of the application, and which is used to “balance” and
compensate for the water leaving the pool through the drains
(which is not always flowing at a constant rate as it is in a
skimmer pool). This balancing tank should have a water-level
regulator connected to a water-supply line. With this system,
when the water reaches a predetermined low level, a valve will
be activated which allows water from the supply line to fill the
tank. This is to ensure that there is always sufficient water for
the pump to operate correctly without sucking air. The water is
pumped through the filtration system and back out through
the return inlets (wall inlets around the side of the pool).