This is an old revision of the document!
A flexible hose looks like the simplest part on a plumbing job, right up until the wrong one is fitted and something fails under pressure. Getting the spec right starts with bore size: the internal diameter of the hose has to match the fitting and the flow the job actually needs, not just whatever thread happens to fit at the tap end. Too small a bore restricts flow and pressure at the outlet; matching it correctly keeps performance consistent with the rest of the system.
This is a common issue on properties that have had a cylinder swapped out at some point without the heater or immersion being reassessed against the new capacity, or where a replacement part has been fitted on availability rather than on matching the original specification. The parts most often involved in correcting it are the immersion element itself, sized correctly in kW for the cylinder's litre capacity, the thermostat controlling it, and occasionally the cylinder's internal coil where a heater draws on indirect heating rather than a direct element.
Plumb2U stocks both electric and mixer showers, along with the pumps, valves and fittings that go with each system type, at trade prices with next-day despatch, for buyers matching the shower to what the property's pipework can genuinely support.
Plumb2U stocks water softeners alongside the elements, valves and fittings that hard water damage tends to bring in for replacement, at trade prices with next-day despatch, for trade buyers dealing with the practical, unglamorous end of hard-water problems on a daily basis.
You can find out more via electric shower spares supplier.
Plumb2U stocks these electric shower spares, elements, thermal cut-outs and hoses, at trade prices with next-day despatch, so a restock order lands before the next callout, not after it.