Pool Problems Library
Pool problems, one symptom at a time
Guides with ranked causes, safe homeowner checks and clear when-to-call lines. Filter by system:
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Low Filter Pressure
Owners celebrate low pressure by reflex, as if the filter were relaxing. In truth the gauge measures effort in the system, and…
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High Filter Pressure
Every filter diagnosis starts from a number most owners never recorded: the clean baseline. Without it, a gauge reading is just a…
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Air Bubbles in Pool Returns
Returns are the system’s confession booth: whatever enters the suction side exits there as bubbles, beaten fine by the impeller. That makes…
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Pool Pump Humming but Not Running
The hum is the motor trying. Single-phase pool motors need a start capacitor to begin rotation, and when that component fails the…
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Pool Pump Not Priming
A centrifugal pump moves water, not air, and prime is simply the absence of air in the suction path. Every priming fault…
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Pool Losing Water
Water loss arguments end with one tool: a bucket on the step. Everything before that is suspicion, and suspicion books the wrong…
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Mustard (Yellow) Algae
Mustard algae fools owners twice: first by looking like dirt, then by surviving the treatment that cures ordinary green algae. Its film…
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Black Algae
Black algae earns its reputation honestly. The visible spot is a cap; beneath it, root-like structures work into the plaster, sheltered from…
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Cloudy Pool Water
Cloudiness is a symptom with a half-dozen authors, which is why experienced diagnosis starts with questions instead of products. Was the pool…
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Green Pool Water
Algae is a plant doing what plants do: given sunlight, warmth, nutrients and a gap in sanitizer, it multiplies. Cape Coral gives…
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