Blocked Bath & Shower in Coventry — Hair, Soap and Limescale

The Coventry Hard Water Factor

Coventry's water supply is hard, carrying dissolved calcium and magnesium minerals that come from the limestone and chalk geology of the catchment area. These minerals react with soap to form an insoluble curd — the grey-white residue you'll recognise on taps and showerheads — that coats the inside of bath waste pipes over time. Combined with hair, this mineral-organic mixture is substantially more resistant than a hair blockage alone. It doesn't shift with hot water and it doesn't break up easily under mechanical pressure.

Limescale also rough-surfaces the pipe interior, giving hair and soap something to adhere to. A pipe that's been descaled drains noticeably better and resists future blockages longer than one that's been rodded clear but left with scale-coated walls. For full descaling treatment, see our drain descaling service.

What We Do

We start with mechanical clearance of the trap and any accessible section of the waste pipe — removing the hair mat and soap curd that has accumulated at the trap. Where scale is present, we apply a descaling treatment to break down the mineral deposit before jetting. High-pressure jetting then flushes the hair, scale and soap residue down through the pipe and out of the system.

Where the pipe is fully blocked and flow has stopped entirely, we work from the access point closest to the blockage — which for a bath waste on an older property may mean accessing from outside or through the floor void. We'll explain the approach and quote before starting.

Showers

Shower traps are often too shallow for effective plunging — the water column isn't deep enough to generate useful force. Hair accumulates faster in a shower trap than a bath trap because of the volume of flow, and the trap itself is usually only 50mm deep, giving very little clearance to work mechanically. On older properties in Earlsdon, Hillfields and similar areas, the shower waste may connect via a long horizontal branch pipe that's difficult to clear from the trap end. In these cases we jet from a downstream access point to pull the blockage through rather than pushing it back up.

When a Recurring Blockage Means More Than Hair

If the bath blocks repeatedly within a few weeks of clearing, the pipe bore may have been significantly narrowed by scale build-up over many years. In properties built before the 1970s, cast iron and clay bath waste pipes may have accumulated 50 or more years of mineral deposit — enough to reduce the effective diameter substantially. A drain inspection will confirm whether the pipe needs proper descaling or whether the recurring blockage is just a matter of catching more hair at the trap.

If the bath and sink are both slow, or if you notice scale on taps and showerheads as well as drainage problems, it's likely a property-wide hard water issue. The blocked bathroom sink service covers the same pattern in basin waste pipes.