water filter self-cutting connection question

I don't think I would want to use one on plastic pipe!

Having said that, I wouldn't want to use one on copper pipe either - preferring a proper tee connection.

But at least it should *work* without leaking on copper. I doubt whether it would on plastic, because the pipe would distort. I suspect that the displaced piece would spring back and block the hole, and that the whole thing would leak.

Doubtless if anyone out there has successfully done it, they'll come back and refute my idle speculation!

They just about don't leak with copper so I think I'll back you.

I`d be a bit dubious too. That said, it would be about 10 mins work to let in a short length of copper pipe on a couple of push fits.

It might be a bit neater to fit a tee.

If you were going to do that, you might as well do the job properly, though. I've seen a pushfit 'T' with washing machine valve preinstalled on the branch.

Just cut off the water, chop the pipe using a plastic pipe cutter, insert metal collars, stick pipe into either end of fitting and turn the water back on.

Christian.

I agree in principle - and would do something like that myself. A washing machine valve isn't going to be the right size for a water filter, though, so some reducing fittings will be required in addition. [I think washing machine outlets are usually 3/4" BSP - whereas filters use something much smaller - 1/8" BSP perhaps?]

"I agree in principle - and would do something like that myself. A washing machine valve isn't going to be the right size for a water filter, though, so some reducing fittings will be required in addition"

Which is why I suggested using a simple piece of tube rather than a T or washing machine valve though it must be said either of these would be neater and somehow more elegant solutions.

I`m thinking of fitting a filter myself when I get round to doing the kitchen - can you get them with proper fittings or do they all come with those self cutting taps and the thin hose?