Basin mixer or pillar taps? The basin decides it first, because pillar taps need two tap holes and a mono mixer needs one. This guide compares the Ideal Standard Calista pair and mixer on holes, waste and flow, explains the check valve rule for single-flow mixers, and works through a ten-room cost example. It also covers pressure, slotted wastes and the mistakes that cause call-backs, with prices and stock checked on 6 November 2026.
Flush Plate Failures in HMOs: What to Stock as Spares | KT
A 9-bed HMO had a cistern trickling for most of a quarter and nobody reported it, because in a shared house it's always somebody else's problem. Here are the three ways flush plates and buttons actually fail, the one fault everyone misdiagnoses, what the water regulations say about a running WC, and the short spares list that turns a callout into a five-minute fix.