How to Replace a Toilet Cistern

Embarking on the journey to replace a toilet cistern might initially feel like deciphering an ancient scroll. Fear not!

In this guide, we’ll unravel the enigma, offering a step-by-step approach that turns this seemingly perplexing task into a burst of DIY confidence, transforming your bathroom one cistern at a time.

Understanding the Toilet Cistern

Before we dive into the process of concealed cisterns replacement, let’s acquaint ourselves with the protagonist – the toilet cistern.

This seemingly ordinary tank, also known as the water reservoir, orchestrates a water ballet to flush away the mysteries left in the toilet pan. Cisterns come in various types, from concealed and inwall to the traditional exposed, each concealing its function in different forms.

How It Works

Now, let’s demystify the workings of this water wizardry. When you trigger the flush, a flush pipe or an inlet valve permits water entry into the cistern.

A floating mechanism ascends with the water level, conducting a ballet of proportions. When the water reaches a predetermined level, the float triggers the inlet valve to cease its flow, ending the aquatic dance.

The stored water then cascades through the flush outlet, vanquishing waste from the toilet pan and into the abyss. Understanding this mysterious choreography is crucial for a seamless cistern replacement.

Signs That Your Toilet Cistern Needs Replacement

Now that you have an idea of what a toilet cistern is and how it works, it’s time to unveil the signs that your toilet cistern might need a revamp. Here are some of them:

  • Mysterious Leaks and Puddles

Ever noticed unexplained puddles around your toilet? If you’re not summoning water spirits for a dance party, it might be a sign your cistern is leaking. Small, mysterious leaks can go unnoticed, but they’re a clear signal that something’s amiss.

  • Bizarre Sounds and Gurgles

Is your toilet producing a symphony of gurgles and strange noises, as if it’s trying to communicate in a secret language? This could be your cistern’s way of saying it’s not holding water properly. Don’t let your bathroom turn into a mysterious sound chamber; it’s time to investigate.

  • Ageing Gracelessly

If your toilet cistern looks like it’s been around since the last lunar eclipse, it’s probably showing signs of wear and tear. Cracks, discoloured parts, or rust may reveal its age. Letting an old toilet cistern linger is like keeping a relic from a bygone era in your bathroom.

  • Inconsistent Flushes

Is your toilet playing a game of chance every time you flush? Inconsistent flushing can be a puzzling dilemma, and the blame often lies with a worn-out cistern mechanism. Don’t let your flush be a roll of the dice – a new cistern could bring back order to your bathroom universe.

  • Water Bills Becoming a Sorcery Act

If your water bills seem to be under a mysterious enchantment, steadily climbing without any visible reason, it might be your cistern’s fault. A leaky cistern can quietly drain your money away, making you the unwitting sponsor of an invisible water ballet.

toilet cistern 2

  • Relentless Repairs

Are you becoming a regular at the plumbing supply store, on a first-name basis with the attendant? Constant repairs to your cistern may feel like you’re battling unseen forces. However, it’s a clear sign that your toilet’s heart – the one inwall cistern – might be ready for a retirement spell.

  • Unwanted Pool Parties

Nobody likes an unexpected pool party, especially in the bathroom. If your toilet has a tendency to overflow or seems to enjoy flooding the bathroom unexpectedly, it’s a blatant cry for a new cistern. No one needs surprise aquatic adventures when nature calls.

  • Chronic Wobbling

Does your toilet feel like it’s doing the hokey-pokey every time you sit on it? Chronic wobbling is a tell-tale sign that the cistern is not playing its supporting role well. A stable toilet is a happy toilet, and a new cistern might just bring back the balance.

  • Colourful Water Shows

If your toilet water resembles a vibrant art installation, with shades of brown and orange, it’s not a watercolour masterpiece – it’s likely a rusty cistern. The rust might be giving your water a perplexing tint, and it’s a clear indication that your cistern is due for a colour correction.

  • Stubborn Stains and Residue

Are stubborn stains and residue making your toilet look like a relic from another era? It might not be a time-travel experiment gone wrong but a sign that your cistern is struggling to maintain water cleanliness. A fresh start with a new cistern could leave your toilet gleaming once more.

If your toilet is showing any of these perplexing signs, it might be time to bid farewell to the old cistern and welcome a new one into your bathroom realm. Addressing these issues promptly will ensure a harmonious and functional toilet, free from the mysteries of leaks and bizarre sounds.

toilet cistern 3

Step-by-Step Process of Replacing a Toilet Cistern

Even if replacing a toilet cistern is a professional’s work, it’s also important for you, as a homeowner, to understand the expertise and knowledge that go into this type of task.

Step 1: Preparation

Your trusted plumbers will first gather their tools and materials, including a new cistern that harmonises with your bathroom’s aesthetic symphony. As a crucial rule, turn off the water supply and flush the old cistern into the depths of your plumbing history.

Step 2: Removal of the Old Cistern

Begin by disconnecting the water supply hose and unscrewing the bolts binding the old cistern to the toilet pan. Gently levitate the ancient cistern away, observing any lingering spells in the form of gaskets or seals that might require renewal.

Step 3: Install the New Cistern

Position the new cistern over the toilet pan, securing it in place with bolts that seem to understand their role in this magical makeover. Secure a snug fit to prevent leaks, and reconnect the water supply hose.

Step 4: Testing

Turn the water supply back on, and let the new cistern fill, as if coaxing it into the rhythm of the new installation and your bathroom’s renewed symphony. Inspect for leaks around the connections and the efficiency.

Maintaining Your Newly-Replaced Toilet Cistern

Now that your trusted plumber has successfully replaced your toilet cistern, your responsibility as a homeowner kicks in – which is maintaining your toilet suite and keeping it in optimum condition. Here are a few tips:

  1. Regular checks: Periodically inspect for leaks or signs of wear around the easy-access connections.
  2. Cleaning: Ward off unpleasant dirt and smell by keeping the cistern clean. A potion of vinegar and water can banish stains and mould from your plumbing fixture.
  3. Avoid harsh chemicals: Refrain from using harsh chemicals. Abrasive cleaning agents may offend the delicate balance of your cistern’s components.

Professional Assistance for the Perfect Finish

Replacing a toilet cistern need not be a daunting quest. With the help your a trusted professional plumber, you can easily restore your toilet’s vigour. However, remember that it doesn’t end with a replaced unit; regular maintenance and repairs can make a whole lot of difference.

Shop online or offline for your new toilet cistern, and let your water-efficient bathroom be a testament to the burst of professional expertise that arises from understanding the arcane art of cistern replacement.

Please note: This information is provided for advice purposes only. Regulations differ from state to state, so please consult your local authorities or an industry professional before proceeding with any work. See 23 Hour Plumbing’s Terms & Conditions here.

Last Edited on: 8th December 2023

Need a Plumber?

Local Plumbers available 24/7

Recent Posts

Burst water pipes are one of the most common plumbing emergencies homeowners face, often leading ...

What does a roof plumber do? Understanding the role of a roof plumber is essential ...

From the health and hygiene benefits to potential cost savings, there are many reasons why ...

Discover the benefits of hydro jet drain cleaning as a method of resolving blocked drain ...

Discover some of the benefits and drawbacks of gas heating for your home.