The Professor Pool Blog

Pentair acknowledged field-reported issues with the IntelliChlor Plus and LT controller. Here is what changed and what to do.

The usual closing order for winter chemicals, plus what borates do and how to add them safely.

Cloudy water is usually a filtration or chemistry problem you can fix in a day or two.

Green water means algae. Here is the fastest safe way to get back to clear.

A strong pool smell usually means too little free chlorine, not too much.

Sunlight and low stabilizer burn off chlorine. Here is how to keep it in the water.

Add pool acid in small doses, circulate, and retest. Check alkalinity first.

Most priming problems come from air in the suction side or low water.

The type of noise tells you where to look. Grinding means stop and call.

Check flow, thermostat, and fuel before you call for service.

Many bad cell calls turn out to be low salt, low flow, or cold water.

A simple bucket test shows whether you have a leak or just evaporation.

Identify the stain first. Metal, organic, and scale each need different treatment.

Clean by pressure, not by the calendar.

A fair, high-level look at three popular pool service and routing platforms, plus how to choose.

Small habits at purchase and install time can decide whether a claim is approved.

A five-minute record at install saves hours when a claim comes up.

A lower price online can come with weaker coverage.

Green water is almost always a chlorine problem. Here is how to find the cause and fix it.

Why slowing a pump down saves so much energy, and how to set it up safely.

Catch pump trouble early and avoid a burned-out motor.