iank
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| posted on 6/7/06 at 10:37 AM |
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Plumbing problem
Just bought an outside tap for swimbo.
It's one of the ones that self cuts into an existing pipe. The bit that self taps has a small cutoff tap and I presume is also the non-return
valve.
I've screwed it into the pipe and looks to be fine but there is a major and minor problem
1. It weeps very slightly - about a teaspoon overnight. Everything seems tight and I don't want to strip a thread or distort the rubber
washer. Any suggestions on a good way to stop it?
2. More worryingly it doesn't seem to let more than a dribble out of the outlet. even though the tap it's connected to still works at full
pressure. I've followed the instructions to the letter and it's vertical as they insist. The pipe has definately been holed properly -
I got rather wet while investigating  There is a small screw on the body of the non-return valve that isn't mentioned in the instructions
do I need to fiddle with that?
Suggestions, well better suggestions than call a plumber and have a proper tap put in 
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Marcus
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| posted on 6/7/06 at 10:44 AM |
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Don't call a plumber! I've never been a fan of those self cutting things, I don't think they have a non return valve in them either.
Best to turn water off, cut pipe, insert a push fitt tee, non return valve, then tap. With these modern plastic plumbing accessories, it's a 5
minute DIY job.
Marcus
Because kits are for girls!!
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JoelP
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| posted on 6/7/06 at 11:57 AM |
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i dont trust those taps either, too close to a bodge. Id always solder fittings, cos its a hell of a lot easier than people think. Is the flexible
pipe to the tap perminantly connected to clamping device? Some have a 3/4" thread that will screw onto an appliance valve, same as the washing
machine etc. You can get a compression fit appliance tee, piece of cake. 
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iank
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| posted on 6/7/06 at 12:46 PM |
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Yes, I also think they are a bodge, but they seem the most common type for outdoor tap kits. The fact it was knocked down to £5 made it a bit of an
impulse buy. Never again, again...
The flexible hose has an appliance valve on it, and I'd have just used that, but thought the cutoff tap had a non-return valve - considering
they are a legal requirement and there's no other provision for one in the kit.
Live and learn, off to b&q again tonight I guess.
Thanks for the suggestions. Will update if I don't flood the kitchen 
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matt_claydon
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| posted on 6/7/06 at 12:51 PM |
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The non-return valves are usually in the outside tap itself.
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Macbeast
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| posted on 6/7/06 at 02:24 PM |
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I would try the screw you mention on the body of the non-return valve. I've installed NRV in pipes and they always had a shut-off valve
incorporated, opened and closed by turning said screw.
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Peteff
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| posted on 6/7/06 at 04:11 PM |
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Bibcock tap kits
I'm with them, either cut the pipe and use a compression fitting which is second nature to anyone who can use a spanner or solder ring fittings
which will need a bit of flux and the copper pipe cleaning with some wire wool. It's not a black art as plumbers would have you believe, you
just heat the pipe with a blowlamp till you see the solder appear at the joint then move on to the next one. If it's outside the other option is
to ignore it.
yours, Pete
I went into the RSPCA office the other day. It was so small you could hardly swing a cat in there.
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owelly
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| posted on 6/7/06 at 04:41 PM |
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Turn off the cold water. Drain the cold water tap. Take off the crappy clampy thing (catch the water with a bucket). make a cut just above and below
the hole in the pipe and deburr. Use a push fit plastic tee piece to join the pipes. Buy a 15mm push fit/washing machine thread fitting, screw to your
flexi then use a bit of 15mm copper pipe to connect the Tee.
Proper job done.
And don't let any one use any of the taps or flush the toilet whilst you have the pipes in bits!!
[Edited on 6/7/06 by owelly]
http://www.ppcmag.co.uk
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greglogan
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| posted on 6/7/06 at 05:03 PM |
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Chances are that the bit in the kit for cutting the whole in the pipe either did not finish up properly (pipe still 75% in tact) or the bit it cut off
is wedged in the tap somewhere.
Greg.
Women are meant to be loved, not understood.
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