Spa Alkalinity Control

Many people experience issues with spa alkalinity going low due to aeration and automated acid feed. Here is how to solve the problem of low total alkalinity.

Depending on water volume and acid concentration use the following Set Points and relay on/off times.

On If pH>7.6 or 7.7

On Time: 00:00:06 up to 00:00:08

MinTimeOff:00:00:45 up to 00:01:30

Adjust these settings to what is needed to your particular situation and you can maintain your pH set point while having low to no impact on your total alkalinity.

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