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Plumber Caterham: What a Dripping Tap, a Running Toilet and a Slow Drain Are Telling You

plumbing

Plumber Caterham: What a Dripping Tap, a Running Toilet and a Slow Drain Are Telling You

The small plumbing faults everyone lives with are diagnostic information. What each one means, what it costs while it is ignored, and which of them are a genuine warning rather than an annoyance.
GR
By Gareth Regan
2026-08-105 min read

Every house has one: the tap that drips if you do not close it just so, the toilet that hisses for a minute after filling, the shower tray that empties slowly. They get absorbed into normal life, and each one is a component telling you exactly what has worn out.

G R Plumbing works across Caterham, and this is how to read the four small faults that turn up in nearly every home.

The dripping tap is a worn seal, not bad luck

A traditional tap drips because the rubber washer inside has hardened or split; a modern quarter-turn tap drips because its ceramic cartridge has worn or picked up grit. Either way it is a small part rather than a new tap, and forcing the handle harder to stop the drip grinds the seat and turns a cheap repair into an expensive one.

The waste is not trivial either. A steady drip is measured in litres a day, and on a hot tap you are paying to heat every one of them. The other cost is cosmetic: mineral-rich water running constantly over a ceramic surface leaves a stain that eventually will not come off.

  • Do not overtighten a dripping tap; it damages the seat.
  • Most drips are a washer or cartridge, not a new tap.
  • A hot tap drip is heated water being paid for and thrown away.

A toilet that keeps running is the most expensive fault in the house

A cistern that refills periodically, or hisses continuously, is passing water into the pan through a worn flush valve or an incorrectly set float. A slow, silent pass is easy to miss altogether, and it can waste hundreds of litres a day without anyone noticing until a metered bill arrives.

The test takes two minutes: wipe the back of the pan dry, then look for a wet trickle line below the rim after ten minutes of no use. A little toilet paper laid on the dry porcelain shows it even more clearly. If it is wet, water is moving when it should not be, and the fix is a valve rather than a plumber's whole morning.

  • Dry the back of the pan and watch for a trickle line.
  • A silent pass wastes more than a noisy one because nobody notices.
  • Usually a flush valve or float adjustment, not a new cistern.

Slow drains and the difference between a blockage and a design fault

A drain that has become slower over months is filling with the usual mixture of soap, grease and hair, and it will respond to proper cleaning. A drain that has always been slow since the day it was fitted is a different problem: not enough fall on the waste pipe, too many tight bends, or a trap that was never right.

The distinction matters because no amount of cleaning fixes a bad fall. If a shower has emptied slowly since installation, the answer is corrective pipework rather than another bottle of drain cleaner, and caustic products used repeatedly on a slow run do more harm to the pipe than to the blockage.

  • Getting slower over time means a build-up; always slow means bad pipework.
  • Repeated caustic cleaners damage pipes and traps.
  • A gurgle from another fitting points to a shared blockage or venting fault.

Smells, damp patches and the ones worth acting on today

A drain smell indoors usually means a trap has dried out or lost its seal, common in a rarely used shower or a washing machine standpipe. Running the fitting for a minute refills the trap, and if the smell persists the trap or its connection has failed and needs attention rather than air freshener.

The symptom that should never be filed under minor is a damp patch, a stain on a ceiling, or a cupboard floor that feels cold. Water finds a path and travels, so the visible mark is rarely above the leak. G R Plumbing would far rather trace a small stain than replace a ceiling, because those two jobs are separated by a few weeks of waiting.

  • Persistent drain smell means a failed or dried trap.
  • Damp patches travel; the stain is rarely under the leak.
  • Anything wet near an electrical fitting is same-day work.

Related pages

Questions customers ask

Is a dripping tap actually worth fixing?

Yes, and quickly. It is a small worn part, it wastes a measurable amount of water, and continuing to close the tap harder to stop it damages the seat, which turns a minor repair into replacing the tap.

How do I know if my toilet is leaking into the pan?

Wipe the back of the pan dry and wait ten minutes without using it. Any trickle line means the flush valve is passing. It is one of the largest and most invisible sources of wasted water in a home.

Should I use drain cleaner on a slow shower?

Sparingly, and not repeatedly. If it was slow from the day it was fitted, the pipework fall or bends are wrong and chemicals will never fix it, while repeated use damages traps and pipes.

Small faults are cheap to fix and informative to read. The drip is a seal, the hiss is a valve, the slow drain is either dirt or geometry, and the damp patch is the only one that cannot wait.

G R Plumbing covers Caterham and takes on the small jobs as readily as the large ones. The contact page takes a list.

Need help with unvented hot water in Caterham? Speak to G R Plumbing and send the job details.

GR

Written by

Gareth Regan

Owner