Isolate the cold water cistern: how-to guide

Need to isolate the cold water cistern? Whether you need to repair or replace the ball valve, or carry out further work on the low pressure side of your plumbing system, this article will explain several different ways to carry out this simple task. How to isolate the cold water cistern Isolation valve/service valve The … Read more

Croydon ball valve

A Croydon ball valve is a ball valve which consists of a piston inside a brass housing, with a float arm secured to the valve via a brass split pin. On the end of the float arm is a plastic or copper float. Inside the valve, the piston carriers a washer, which faces the valve … Read more

Part 3 ball valve: what is it & how does it work?

A Part 3 ball valve or diaphragm ball valve is a ball valve made to British Standard specification 1212, Part 3. It consists of a plunger and a diaphragm washer inside a plastic housing. The plunger is partly visible and protrudes from the face of the valve. Water enters the cistern via small plastic spout on … Read more

Part 2 ball valve: what is it & how does it work?

A Part 2 ball valve or diaphragm ball valve is a ball valve made to British Standard specification 1212, Part 2. It consists of a plunger and a diaphragm washer which are both situated inside a brass housing. The plunger is partly visible and protrudes from the face of the valve. Water enters the cistern via … Read more

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