Which type of filter requires the small amount the water to clean?
Cartridge
A water chemistry reading of -5.0 saturation index
highly corrosive water
New safety improvements for every public pool and spa were signed into law in December 2007
What is Virginia Graeme Baker Pool and Spa Safety Act? VGB
The results of channeling sand filter?
Unfiltered water returning to the pool
In a circulation system the commonly accepted best practice is
75% of water from the surface and 25 % from the main drain
Ferrous ammonium sulfate (FAS-DPD) is what kind of test method?
Titrimetric
To be classified as disinfectant a chemical must kill 99.99% of contaminants and ?
leave a measurable residual in the water
Which type of filter will remove the smallest particles?
Diatomaceous Earth (DE) Filters
Is there galvanic corrosion in the water?
is signaled by discoloration of metals submerged in water
You are receiving complaints about strong chlorine smell
High levels of Combined Chlorine/Chloramines in the pool
What is failure to meet the standards of care?
Negligence
To have sand returning to the pool in a sand filter system is
a broken lateral