Toilet Cistern
I have a concealed water connection to my toilet cistern with a fibre washer which in time will wear and cause a leak, is there a foolproof alternative please.
For your information it is a wall hung toilet, to access this connection I had to remove a shelf above the toilet and then drill a hole through 10mm timber, it seems a crazy method and I was wondering if this type of installation is allowable within building regulations. I have photos available should you wish to view.
Advice from 2 local tradespeople
It sounds like you’re dealing with a concealed water connection to your wall-hung toilet, and you’re concerned about the longevity of the fiber washer as well as the method used for installation. Let’s break this down into two parts: the alternative to fiber washers and the installation method.
1. Alternative to Fiber Washers (for Water Connections)
Fiber washers are often used in plumbing connections, but as you correctly pointed out, over time they can wear out, leading to leaks. There are several alternatives that are more durable and reliable:
• Rubber Washers: These are a common alternative to fiber washers, and they tend to provide a better seal and last longer. Rubber washers are more flexible and resilient, especially in high-moisture areas.
• Plastic/Brass Compression Fittings: Consider using compression fittings with a rubber or silicone seal. These types of fittings are often more durable than traditional fiber washers and can create a tighter seal. They are widely used for water connections and are designed to prevent leaks for much longer than fiber washers.
• Push-fit Fittings: If the connection is appropriate for this type of fitting, push-fit fittings (like those made by brands such as SharkBite or Hep2O) could be a good option. These fittings create a secure, watertight seal without the need for washers or complicated plumbing. They’re easy to install and remove without the need for specialized tools.
• PTFE (Teflon) Tape: While PTFE tape alone won’t replace the need for a washer, it can be used in combination with washers to help ensure a leak-free seal. Wrapping the threads of the connection with PTFE tape can help create a stronger seal.
• Silicone Sealant: In some cases, silicone sealant can be used around the washer or fitting as a supplementary measure. However, be careful to avoid over-applying, as silicone sealant is permanent and can make future maintenance more difficult.
Fibre washers can wear over time, so a more reliable alternative would be:
1. Use a rubber or silicone washer: These are more durable and create a better seal. Pair it with PTFE tape on the threads for extra leak protection.
2. Upgrade to a flexible connector: Consider replacing the connection with a flexible braided hose with integral rubber washers, which are easier to install and maintain.
3. Regarding the installation, concealed connections like this are common, but access must comply with Building Regulations (e.g., allowing for maintenance without major disruption).
If necessary, it might be worth also consulting a plumber to ensure the setup meets standards.
