Engineering guides to water treatment, wastewater, equipment operation and regulations.
The same water leaves a cold pipe untouched and scales up a water heater. How to tell in advance from five values in a water analysis what the water will do to a system, and why softening to zero is not always a good thing.
September 2026 · 7 min→Hotels · Disinfection · OperationLegionella in hotel hot water: where it lives and how it is kept under controlWhy the bacterium multiplies in hot water systems, which parts of the network carry the most risk, and what temperature control, thermal disinfection, chemicals and UV actually deliver.
September 2026 · 7 min→Membranes · OperationMembrane biofouling: how to tell it from scale and how to deal with itWhy biofilm is the most stubborn of all reverse osmosis and ultrafiltration foulants, which data reveal it, how a cleaning sequence is built and what prevents the film from coming back.
September 2026 · 6 min→Operation · Residential · WastewaterSeptic tank installation and start-up: pit, anchoring, first winterWhy an empty tank floats out of the ground, where the inlet pipe blocks up, and what to do in the first weeks after you switch it on.
July 2026 · 7 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→