ORP Setpoints

It is not uncommon for users of ORP controllers to be uncertain how to determine ORP set points. Here is a simple way of determining where to start. Check chlorine, pH, alkalinity and cyanuric acid levels and adjust to desired levels. When your water is at the level you want and note the ORP reading…

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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…

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