94. NITROGEN
97. ORGANIC WASTE
100. OXIDIZER
127. SODA ASH
130. SODIUM CARBONATE
133. SODIUM PERSULFATE
95. NON-CHLORINE SHOCK
101. OZONE
104. POTASSIUM MONOLSULFATE
122. SEQUESTERING AGENT
128. SODIUM BICARBONATE
131. SODIUM DI-CHLOR
134. SODIUM THIOSULFATE
99.OXIDATION
125.SHOCK TREAT
129.SODIUM BISULFATE
132.SODIUM HYPOCHLORITE
135.SODIUM TRICHLOR
A gas that causes algae to bloom and disables chlorine. It is brought into the water each time it rains. Maintaining proper chlorine levels will prevent nitrogen from becoming a problem. Super chlorination will remove nitrogen and its related compounds.
A term given to a class of chemical compounds that are used to oxidize or shock the water (destroy ammonia, nitrogen and swimmer waste). They contain no chlorine or bromine and do not kill living organisms. Swimmers may re-enter the water in only 15 minutes after adding a non-chlorine shock.
To rid the water of ammonia, nitrogen compounds and swimmer waste (organic compounds). These organic compounds disable chlorine, are body irritants and have a foul smell. Removal is accomplished by super chlorination or by shock treating with a non-chlorine oxidizer.
A non-chlorine shocking compound that removes or destroys built-up contaminants and chloramines in pool water without raising chlorine levels as required when “superchlorinating.”
A gaseous molecule comprised of 3 atoms of oxygen. It is generated by the exposure of air or oxygen to either ultraviolet rays or electricity and is used for oxidization of water contaminants.
The active ingredient and chemical name of a non- chlorine shock treatment or non-chlorine oxidizer. Does not kill bacteria or algae but it will oxidize or destroy ammonia, nitrogen and swimmer waste. It has a low pH, and it does not increase chlorine or bromine levels the way that superchlorination does, so water may be entered in 15 minutes after addition. It will also reactivate bromine to its killing form, hypobromous acid.
Also called chelating agent – A chemical that will combine with dissolved metals in the water to prevent the metals from coming out of solution (precipitating or causing stains). May also be a chemical that removes dissolved metals from water.
The practice of adding significant amounts of an oxidizing chemical – (usually non- chlorine oxidizers, such as sodium persulfate or potassium peroxymonosulfate) – to the water to destroy ammonia and nitrogen compounds or swimmer waste.
A device installed through the wall of a pool or spa that is connected to the suction line of the pump that draws water and floating debris in the water flow from the surface without causing much flow restriction.
A removable, slotted basket or strainer placed in the skimmer on the suction side of the pump, which is designed to trap floating debris in the water flow from the surface without causing much flow restriction.
Part of a skimmer that adjusts automatically to small changes in water level to assure a continuous flow of water to the skimmer. The small floating “door” on the side of the skimmer that faces the water over which water flows on its way to the skimmer. The weir also prevents debris from floating back into the pool when the pump shuts off.
A chemical used to raise total alkalinity in pool and spa water with only a slight affect on the pH.
A fast-dissolving, granular, stabilized organic chlorine compound providing either 56% or 63% available chlorine. Used for regular as well as superchlorination. Contains an ingredient (cyanuric acid or stabilizer) that prevents the chlorine from being destroyed by the ultraviolet (UV) rays of the sun. Recommended for use in vinyl-liner, painted or fiberglass pools and acrylic or fiberglass spas.
Liquid chlorine. 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 superchlorination. Not recommended for spas. Does not contain conditioner or stabilizer to protect it from sunlight, but it is protected if stabilizer or conditioner is already in the water.
Active ingredient and chemical name of a non-chlorine shock treatment or non-chlorine oxidizer. Does not kill bacteria or algae but it will oxidize or destroy ammonia, nitrogen and swimmer waster. Does not increase chlorine or bromine levels the way that superchlorination does, so water may be entered in 15 minutes after addition. It will not reactivate bromine.
