First time DIY plumbing

Tyrone said that to Fizz after he had''fixed'' her boiler

mainly bulkiness of plastic fittings over end feed copper (if you use end feed definately practice 1st) if it is hidden then plastic is just as good provided correct usage i.e barrier pipe on heating circuit. plastic pipe is cheaper but fittings more exspensive than end feed copper.

R1CKY said:

Second pic, use one of these....

.......with a bit of copper, then you can connect to it with plastic once it is hidden in the boxing.

Click to expand...

I have to say I disagree for a total novice to use this fitting. It's compression which is harder to use than pushfit.

If he's gonna use compression, then at least watch some videos' on Youtube. It may be basic for us, but for a novice it can go badly wrong.

For instance, if he screws it on to the plastic inlet of the filler valve, and then over tightens/cross threads it.

There are loads of threads on this and other forums just like this:

The pushfit one I showed at the start is easier for a novice.

I should add RICKY that I 100% agree that the compression fitting is the better way to do it. Just not for someone who's a total novice. But like I said, I don't think total novices should attempt plumbing on their own anyway.

I agree with Danny. The JG pushfit he showed earlier is a lot easier to use on a plastic thread, much less chance of cross threading. Then use a separate isolating valve. JG do a very nice looking chrome pushfit one.

If the pipework is hidden there is nothing wrong with using plastic pipe . .. .

I would personally using John Guest Speedfit for the whole lot - this is available from B & Q (bit pricey though!).

You can use a standard JG coupling to joint to copper - not if it is painted however. You would need to remove the paint 100% or use a compression fitting.

Superseal inserts to be used on all JG joints (use a standard one on compression joint). Plus as stated above you can get a JG tap connector as well which would work with the toilet too . ..

The pipe must be cut properly - I use a JG pipe slice to do this. Do not just use any cutter here. Insert to be used on every joint and ensure that the pipe is pushed fully into the coupling.

Other than that it is fairly simple!

Guidellines can be found here - http://www.johnguest.com/Home/literature-downloads/UK-Literature/UK-A4-product-Guide-0311.aspx

See page 6 for jointing.

If you use correct procedures they give a 25 year guarantee on the fittings - you dont get that with copper pipe I can tell you!

Hope this helps in the spirit of the forum . . . .

Good advice from avatar. If the work is all to be hidden there is no problem with using plastic provided you make absolutely certain that all joints are made correctly and inserts are used. The only thing I would add is to take your time and think through each step. It is so easy to make a costly mistake if you are rushing because somebody needs a shower or whatever.