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Metal/Plastic Joints.

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cyborg421

Post subject: Metal/Plastic Joints.

Posted: Mon Jul 13, 2009 1:01 pm

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Hi,

I'm trying to connect a flexible 1/2" metal pipe connector to a 1/2" thread on the bottom of a plastic float valve in my toilet. I've tried ptfe and plumbers putty but I can't get a seal under mains pressure. I worked out that tighten too much makes things worse rather than better but I just can't get a seal.

Help please.

Simon

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thescruff

Post subject:

Posted: Mon Jul 13, 2009 1:04 pm

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There should be a little fibre/rubber washer in the fitting.

Make sure you don't cross thread it.

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gas4you

Post subject:

Posted: Mon Jul 13, 2009 1:12 pm

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The plastic thread may be scored or damaged. Once this has happened it will need a new inlet/ball valve fitted.

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www.drlgas.co.uk

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cyborg421

Post subject:

Posted: Mon Jul 13, 2009 1:12 pm

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Yes there is a washer.

I don't think I've cross threaded it.

Simon

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cyborg421

Post subject:

Posted: Mon Jul 13, 2009 4:27 pm

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Thanks Dave/Scruff.

Had to buy a new one. Sorted now.

Simon

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DAHplumbing&heating

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Posted: Wed Jul 15, 2009 10:00 pm

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cyborg421 wrote:

Thanks Dave/Scruff.

Had to buy a new one. Sorted now.

Simon

he cross threaded it :help:

happens to the best of us mind you if you use a push fit tap connector on a ballvalve it never crosses they are brill for connecting toilets and taps up :thumbright:

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thescruff

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Posted: Wed Jul 15, 2009 10:06 pm

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That is very true, brilliant fitting, good for under baths as well, and you can make the flexi up with a length of tube.

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