Often, when setting up or renovating a bathroom, we concentrate on the visible fixtures such as taps, basins, or tiles. But there is one silent yet small support element-the cistern, that we miss out on.
A toilet cistern or flush tank is a bowl that holds water to flush the bowl. Although these tanks might not be the centre of attraction in the bathroom, their selection impacts how efficiently your toilet functions.
What is a Toilet Cistern?
A cistern is normally located above or behind the toilet bowl. Its main role is to contain a reserve of water that under the pressure of any mechanism like a lever or a button would empty the waste into the drain. It connects with the toilet bowl using a flush pipe that gets filled up automatically after being flushed.
How Does a Cistern Work?
To understand how it works, let’s break it down:
- Filling Process: The cistern fills up with water once the toilet has been flushed through the main supply. This is achieved with the help of a component known as the inlet valve.
- Float Valve: Within the cistern is a floating ball or float cup that is connected with a rod. As the amount of water increases, the float goes up. At a fixed level, it sends a signal to the inlet valve that the water is to be switched off.
- Flush Mechanism: With the push of a button or pull of a handle the bottom of the tank will have an opening in the form of a flap or a valve. The water flows through the flush pipe that hollowed into the bowl through a cascade of water flush the waste away.
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Overflow Pipe: This is a safety device to prevent water spilling over in case the inlet valve fails. Excess water simply empties into the toilet bowl.
This simple system has been used for decades and remains reliable in homes, public places, and offices.
Types of Toilet Cisterns
There are usually a few different types of toilet cisterns, depending on the installation styles and flushing mechanisms. Here's a quick run-down of the different types:
1. Wall-Hung Cisterns
These are paired with wall-hung toilets. They are installed on the wall, which saves floor space, and gives the bathroom a clean and stylish look. These cisterns also make it easier to maintain the bathroom floor.
2. Concealed Cisterns
These cisterns are buried in the wall or behind a panel with only the flush plate being visible. They make your bathroom look clean and modern and they help make it space saving. But their accessibility can be a tricky itinerary when it comes to repairs.
3. Close-Coupled Cisterns
This is the most popular type whereby the cistern is connected with the toilet bowl connected. It has a small size, is easy to install and easy to maintain.
4. High-Level Cisterns
Placed high on the wall with a long pipe connecting to the toilet. Flushed using a chain or lever. Mostly used in old-style or vintage bathrooms.
5. Low-Level Cisterns
Installed just above the toilet bowl with a short pipe. Easy to maintain and offers a slightly old-school look.
6. Dual-Flush Cisterns
Such cisterns have two flush buttons, one which is a half flush (liquid waste) and half flush (solid waste) full flush. Such a system contributes to the reduced water consumption and is one of the most popular options of the environmentally friendly bathroom.
What Are Toilet Cisterns Made Of?
Toilet cisterns are available in a range of materials, each offering its own set of advantages in terms of durability, maintenance, and cost. Here are the most common materials used:
1. Ceramic
Ceramic cisterns are strong, easy to clean, and match most toilet bowls. They don’t scratch or stain easily and are a popular choice in homes.
2. Plastic (ABS or PVC)
Plastic cisterns, especially ABS, are light and rust-proof. They’re often used for concealed or wall-mounted tanks. They fit well in compact spaces and support dual-flush buttons.
3. Stainless Steel
Stainless steel is tough and long-lasting, but usually used in public or industrial toilets, not in homes. It’s more expensive and less common in household bathrooms.
Which Material Is Best?
For most homes, ceramic and ABS plastic are the best options.
- Plastic (ABS) is great for hidden cisterns because it’s light, doesn't rust, and fits easily inside walls or cabinets.
- Ceramic is a good choice for visible flush tanks. It’s sturdy, easy to maintain, and lasts a long time.
Things to Consider When Choosing a Toilet Cistern
Choosing the right cistern depends on a few things:
- Space Available: In case you have a small bathroom you need a concealed cistern or close coupled. In bigger rooms, there are more choices to have.
- Water-Saving Features: Dual flush cisterns are the right selection if you want saving water consumption over time.
- Maintenance Access: With concealed cisterns, make sure there’s a way to reach it in case repairs are needed, either through the flush plate or a separate access panel discreetly built into the wall.
- Budget: Traditional types like close-coupled cisterns are generally cheaper. Concealed types may be more expensive because of additional parts and fitting time.
- Style Preference: Depending on whether you want the more contemporary feel or the classic look, the style of cistern can help make the style of the bathroom more complete.
- Flush Mechanism: Nowadays, push buttons have found more preference than levers that remain in use in older, retro designs.
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Whether you're building a new bathroom or replacing the old one, the toilet cistern acts as the working mind of your toilet. From water-saving tanks to wall hung concealed types, there is a cistern for each style of bathroom setup, either modern or traditional. To have a washroom untarnished, clean, and coolly functional with not excessive fuss, a proper flush tank needs to be chosen. Ruhe offers a wide range of cisterns, including concealed and dual-flush options. Check the website to explore more.
