How To Test Pool/Hot tub Water;
Test strips - dip a strip in a sample of pool/hot tub water, compare the colour on the strip with the colour chart on the bottle
Basic test kit - crush a tablet in a sample of pool/hot tubs water, compare the colour with the chart on the kit.
Aquachek TruTest Digital test kit - dip a strip in pool water sample, lay flat on test reader, results will be displayed on screen.
Photometer (most accurate) - crush a reagent and mix in test tube with pool water sample. Put into machine, results will be displayed on screen.
How to videos are shown on many of these products.
PLEASE NOTE! you cannot mix and match photometers and reagents, eg. if you use a Palintest photometer you must use a Palinteset reagent.