Why Is There Algae on Pool Walls and Floor?
Visible green, black, or mustard-colored patches on pool walls or floor.
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Knowledge center
Practical guides to pool operation, equipment selection and common water problems.
Why Is My Pool Pump Losing Prime?
The pump loses suction repeatedly, requiring re-priming, or runs with visible air in the pump basket/pot.
Read the guideHow Long Does It Take to Heat a Swimming Pool?
Direct answer: Heating time depends on pool volume, the temperature rise needed, heater output, and heat loss factors (indoor vs outdoor, covered vs uncovered) — there is no…
Read the guideCommon Pool Waterproofing Mistakes
Direct answer: The most common waterproofing failures come from inadequate surface preparation, insufficient reinforcement at joints and penetrations, and not following the manufacturer’s specified thickness or cure time…
Read the guideMain Stages of Swimming Pool Construction
Direct answer: Swimming pool construction generally follows six main stages: design and engineering, excavation, structural shell construction, waterproofing, mechanical and electrical installation, and finishing/commissioning.
Read the guideHow to Raise Pool pH
Direct answer: pH is raised using an alkaline pH-increaser product, added gradually with re-testing between doses, the same disciplined process as lowering pH but in the opposite direction.
Read the guideHow to Lower Pool pH Safely
Direct answer: pH is lowered using an acid-based pH-decreaser product, added gradually and re-tested between additions rather than in one large dose.
Read the guideIdeal Chlorine Level for Swimming Pools
Direct answer: Recommended free chlorine ranges are typically set by health/regulatory guidance and can vary by pool type (residential vs. commercial/public) and by cyanuric acid level — always…
Read the guideIdeal pH Level for Swimming Pools
Direct answer: Most pool chemical manufacturers recommend keeping pool water pH within a moderately narrow range around neutral-to-slightly-alkaline — always confirm the exact target range against your test…
Read the guideHow to Choose the Correct Pool Pump Size
Direct answer: Pump sizing starts from your pool’s design flow rate (volume ÷ turnover time), then selecting a pump that can deliver that flow rate against your system’s…
Read the guideHow to Choose the Correct Pool Filter Size
Direct answer: Correct filter sizing is based on your required flow rate (from pool volume ÷ turnover time), matched against a specific filter model’s rated flow capacity —…
Read the guideHow to Calculate Swimming Pool Volume
Direct answer: Pool volume is calculated from the pool’s shape (rectangular, oval, or circular) combined with its shallow and deep-end depths, using standard geometric volume formulas — not…
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