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Technical Resources & Installer Guides

14 Technical Sizing & Hydraulic Reference Guides

Direct engineering calculations, fluid dynamic analysis, altitude derating factors, and African operating solutions.

Guide #1 Engineering Technical Knowledge
How to Select the Correct Pool Pump for a Swimming Pool

Step-by-step sizing calculation based on pool volume, turnover rate (6 to 8 hours), dynamic head loss, and filter sizing in South Africa.

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Guide #2 Engineering Technical Knowledge
Why 63 mm Suction Plumbing Improves Pump Performance

Detailed fluid dynamic comparison between 50mm and 63mm pipework, showing reduced friction loss, lower motor current draw, and higher flow.

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Guide #3 Engineering Technical Knowledge
Problems Caused by Undersized 40 mm Suction Pipes

How restricted suction piping induces cavitation, destroys impellers, boils mechanical seals, and causes motor overheating.

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Guide #4 Engineering Technical Knowledge
Pool-Pump Performance at Johannesburg Altitude (1,753m)

Atmospheric pressure differences on the Highveld, reduced suction lift limits, motor air cooling derating, and practical installer adjustments.

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Guide #5 Engineering Technical Knowledge
Designing Pool Pumps for High African Ambient Temperatures (50°C IE2)

Why standard 40°C European motors fail in African summers and how Class F insulation with oversized cooling fans prevents premature burnout.

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Guide #6 Engineering Technical Knowledge
Pool-Pump Electricity Cost per Cubic Metre Calculation

Mathematical formula for calculating water circulation efficiency and monthly Eskom / municipal electricity expenses.

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Guide #7 Engineering Technical Knowledge
Matching a Pool Pump to a Sand Filter (D500 & D600 Sizing)

How to avoid media fluidization, sand blow-by into the pool, and excessive backpressure by pairing the right pump kW with the correct filter diameter.

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Guide #8 Engineering Technical Knowledge
Hammer versus Diaphragm Automatic Pool Cleaners

Hydraulic pulsation differences between hammer-action and diaphragm suction cleaners and their mechanical impact on pump impellers.

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Guide #9 Engineering Technical Knowledge
How Interrupted Cleaner Flow Affects Pool Pump Cavitation

What happens when suction cleaners jam or suck air at the weir, causing thermal build-up and dry-running seal damage.

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Guide #10 Engineering Technical Knowledge
Hard-Water & Calcification Effects on Swimming-Pool Pumps

Calcium carbonate scale formation on mechanical seal faces, impeller hubs, and heat dissipation fins in inland South Africa.

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Guide #11 Engineering Technical Knowledge
Correct Pool Return-Eyeball Sizing & Circulation Direction

How return nozzle orifice diameter creates necessary backpressure without straining the motor, and how to direct water for skimming.

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Guide #12 Engineering Technical Knowledge
Saltwater-Pump Material & Seal Selection (Silicon Carbide vs Ceramic)

Why salt-chlorinated pools require 316 stainless steel hardware and silicon carbide mechanical seal faces to prevent corrosion leaks.

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Guide #13 Engineering Technical Knowledge
Understanding Pump Flow, Head, Power and Hydraulic Efficiency

Engineering breakdown of head pressure vs flow curves, duty points, Best Efficiency Point (BEP), and power factor.

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Guide #14 Engineering Technical Knowledge
Preventing Capacitor Damage from Heat and Unstable Voltage

How voltage drops and summer heat degrade start/run capacitors, and how UPP's high-temperature 450V capacitors prevent failure.

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