a term used to define the amount of water in a swimming pool
What is total gallonage?
100
A number that represents the acid versus base balance of water
What is pH?
100
A mechanical device for separating suspended particles from water
What is a filter?
100
The chemical name for chlorine stabilizer
What is cyanuric acid?
100
Frequency that chemical recordings should be taken
What is every 2 hours or your health department's standard?
200
The amount of item being measured in one million units of the whole
What is parts per million or ppm?
200
Free chlorine reading plus combined chlorine reading equals
What is total chlorine reading?
200
a chemical feed device in which powder, tablets, sticks or briquettes are placed in a container and a water feed passes causing the chemical to dissolve
What is an erosion feeder?
200
The process of cleaning a pool's filter by reversing the flow of water through the filter
What is backwash?
200
FAC+CC=
What is total chlorine?
300
The outside parameters of the acceptable pH range for a swimming pool, both low and high
What is 7.0 to 8.0?
300
The 6 typical compounds tested for in outdoor swimming pool operations
What are free chlorine, total chlorine, pH, total alkalinity, calcium hardness, cyanuric acid? Also accept total dissolved solids instead of cyanuric acid
300
a device that limits flow in a pipe to a single direction
What is a check valve?
300
The common name for sodium hypochlorite
What is bleach?
300
A gas that is used to lower pH in the water
What is CO2?
400
The ideal pH under normal circumstances in typical outdoor swimming pools
What is 7.4 or 7.6?
400
Typical chemical, in powder form, used to increase total alkalinity
What is sodium bicarbonate?
400
the product that performs the separation of the solids from liquid
What is filter media?
400
Water with corrosive properties due to low pH, low calcium harness and/or total alkalinity
What is aggressive water?
400
Document used to aid the operator in adjustments of water chemistry
What is a dosage chart?
500
A method for determining whether the water is balanced with regard to calcium carbonate equilibrium
What is Langelier Saturation Index or LSI?
500
Elimination of organic chloramines by adding enough free chlorine to destroy the inorganic chloramines that contribute to combined chlorine
What is breakpoint chlorination?
500
Water flowing into the pump, filter, chemical feeder and other spaces.
What is influent?
500
A measure of the cloudiness or haziness of an otherwise clear liquid.
What is turbidity?
500
A method measuring the potential, relates to the concentration of oxidizer in the water.