There are currently 9 names in this directory beginning with the letter D.
The area that surrounds the pool. It can be made of a variety of materials including concrete, flagstone, brick, aggregate, etc. A deck should drain well and be slip resistant.
Also called Anti-Foam. A chemical that reduces and/or eliminates foam. It pops bubbles. Squirt it over the water surface.
Diatomaceous Earth (DE)
A white powdery filtering agent composed of the skeletal remains of a form of plankton (diatoms), commonly used to filter water. DE is added to the skimmer and as it goes into the filter it coats the elements. When the DE is dirty the filter is backwashed or drained and new DE must be added to the filter.
The common name for sodium dichlor. A fast dissolving chlorine compound containing chlorine and cyanuric acid (stabilizer or conditioner). It has a neutral pH and is quick-dissolving.
Eyeball type of device which attaches to the pool return so that the water can be directed a certain way.
Presence of unusual colors in the water, commonly clear green or brown.
See Total Dissolved Solids (TDS).
Technical name is Diethyl-P-Phenylene Diamine. A test reagent used to measure disinfectant levels such as free available chlorine and total chlorine.
Sodium Bisulfate - added to water to lower pH or Total Alkalinity. Safer to handle than muriatic acid.
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