1. Check water hardness: Water hardness effects the amount of detergent
that must be added, so you should check water hardness in the account:
a. Get 10 ml sample of water
b. Add 3-5 drops of buffer solution
c. Add 2/3 scoop of indicator powder
d. Swirl, adding single drops of hardness reagent
e. Count drops until color changes
f. 1 drop=0.5 grain hardness
Tank Titration: Step 1 =Check Water
Hardness
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