Pumps

Both do the same job — catch solids before they reach a pump, a control valve or a meter — and both are called "strainers" on a drawing. But a Y-type and a basket strainer behave very differently once the system is running. One is compact and tolerates almost any...

Most pump failures that get blamed on the pump start somewhere else in the pipe. A fragment of weld slag left from installation, a flake of scale from an old main, a handful of sand drawn in from a ground tank — any of these can chip an impeller vane,...

How the villa water chain works — ground tank, transfer pump, roof tank, gravity and booster — with sizing rules, dry-run protection and the top-floor pressure fix.

Wafer, semi-lugged, fully lugged and flanged butterfly valve bodies compared: dead-end service, downstream removal, pressure ratings and when to specify each.