PlumbingProblem.co.uk guides

Toilet problems

Running cisterns, leaks around the pan and other toilet faults that can waste water or damage floors.

Toilet problems in a domestic plumbing setting

Why Is My Toilet Cistern Not Filling?

What can stop a toilet cistern filling after a flush, including shut service valves, stuck inlet mechanisms and supply restrictions.

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Why Is My Toilet Making a Hissing Noise?

What a hissing toilet usually means, how to tell a fill-valve problem from a leak into the pan and why the cistern may be wasting water.

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Why Does My Toilet Keep Running After It Has Flushed?

Reasons water continues to run into a toilet pan or cistern after flushing, how to recognise the likely fault and what repair may be needed.

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Why Is My Toilet Leaking Around the Base?

A guide to water appearing around the base of a toilet, the difference between supply and waste leaks, and when the toilet may need to be removed.

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Why Does My Toilet Overflow When I Flush It?

What to do when toilet water rises towards the rim, why repeated flushing makes things worse and how to tell a local blockage from a wider drainage problem.

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Why Does My Toilet Take So Long to Refill?

Reasons a toilet cistern fills slowly after flushing, from restricted inlet valves and scale to low supply flow and partially closed isolation valves.

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Why Does the Water Level in My Toilet Keep Dropping?

Why the water level in a toilet bowl can fall, from evaporation and siphoning to cracks, blockages and drainage ventilation problems.

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Why Won't My Toilet Flush Properly?

Common reasons a toilet handle or button stops producing a proper flush, from cistern mechanisms to low water level and partial blockages.

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