Engineering guides to water treatment, wastewater, equipment operation and regulations.
Levels and soil decide the receiving point, not the size of the plant — and it has to be settled before you buy, not after the tank is in the ground.
July 2026 · 7 min→Pretreatment · SizingAeration and iron removal: column versus pipeWhy dissolved iron passes straight through a filter, what aeration does, and how a pressure column differs from an aeration pipe.
July 2026 · 7 min→Sizing · ResidentialBorehole water in a private house: from analysis to treatment trainWhat is usually found in borehole water, why the stages sit in exactly this order and how to calculate the peak flow of a house before buying equipment.
July 2026 · 8 min→Operation · ResidentialCartridge replacement schedule: count litres, not monthsWhy the calendar is a poor predictor of cartridge wear, what tells you it is time to replace, and a replacement checklist free of the usual mistakes.
July 2026 · 7 min→Operation · EngineeringCoagulant, flocculant, antiscalant: what is dosed and whereHow the three most common reagents differ, where each belongs in the scheme, and why the dose is found by jar testing rather than taken from the instructions.
July 2026 · 8 min→Sizing · Food processingWater for a coffee shop: TDS, carbonate hardness and scaleWhy fully demineralised water ruins the coffee and the boiler alike, and how reverse osmosis with a blend-back gives water of the right composition.
July 2026 · 7 min→