Shower cold water feed

[motofox]

Can i use a self cutting fitting to tap into the bath cold water pipe, to feed an electric shower?

 

[gas4you]

If you have very good mains pressure you might get away with it, once cut you will probably be left with about a 6mm hole rather than a 15mm pipe to feed the shower. In a perfect world T into it properly

 

[ChrisR]

Better to turn the mains off and put a tee in. If you can't turn the mains off you could be in trouble oif something goes wrong!
But an electric shower only draws 4 litres/minute, so a tiny hole will normally do. The hoses aren't much bigger than 6mm!

 

[motofox]

okay thanks for that, one more question, is there any major reason not to use the plastic poly pipe stuff to connect to the shower inlet, provided i make sure theres no leaks and stuff before i plaster over them? iv used plastic push ons for other stuff and so far so good..

 

[Softus]

Nothing wrong with using plastic pipe for this application.

However, take care when coupling onto the shower - the spigot on many electric showers is marginally too narrow to make an adequate seal using a push-fit connector, therefore you have to use a brass compression fitting on one of these.

Read the manufacturer's installation instructions thoroughly and do exactly as they say.