Balance water chart
To ensure your water is balanced we have created the following chart with ideal levels and the recommended HTH® Pool Care products necessary to adjust your levels.
What is it?
When to test
Product used to adjust levels
A measure of the water's acidity
hth® pH increaser or hth® pH decreaser
Free Available Chlorine (FAC)
The amount of active chlorine in the water
1-4 ppm when using chlorine as the sanitizer.
Any hth® granular or tablet chlorine sanitizer according to label directions
Total Alkalinity (TA)
The water's ability to keep pH at a proper level
Once a week
hth® alkalinity increaser
Total Hardness (TH)
The amount of dissolved calcium in the water
Acceptable: 200-1000 ppm, Ideal: 200-500 ppm
a calcium hardness increaser
Cyanuric Acid (CYA) / Stabilizer
The amount of stabilizer available to prevent the degradation of Free Available Chlorine (FAC) caused by the sun's UV rays
Twice a season
Ideal: 20-50 ppm, DO NOT EXCEED 90 ppm
Please read the following important reminders before adding pool chemicals to water:
• NEVER mix products together or dissolve before use.
• ONLY enter pool when FAC levels are below 4 ppm to prevent risk of bodily harm.
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