structure for climbing up or down; consists of two parallel sides joined by a
series of crosspieces that serve as footrests. It is used for getting in and out
of the pool. A double-access ladder straddles the pool wall of an above-ground
pool. An in-pool ladder is located in the pool only.
LEAF BAGGER A device that
attaches to a telepole and a garden hose. Pressure from the garden hose creates
a suction by which leaves and large debris are sucked into a large mesh bag.
LIGHT NICHE The area in a
pool or spa that house the underwater light.
LINER Also called vinyl
line - The vinyl membrane that acts as the container to hold or contain the
(31.45% hydrochloric acid) - also called muriatic acid - It is used for lowering
pH, total alkalinity and for various cleaning needs. It is also used for acid
A sodium hypochlorite solution. Usually provides 10 to 12% available chlorine;
has a pH of 13 and requires that small amounts of acid be added to the pool to
neutralize the high pH. Good for regular chlorination and super chlorination.
A dry, granular chlorinating compound with an available chlorine content of 35%.
It is rapid-dissolving and can be used to super chlorinate vinyl-liner pools,
painted pools or fiberglass pools as well as spas and hot tubs.