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Post by rocketmanbkk on Jul 20, 2020 16:21:13 GMT
Fitting an outside tap I drill straight through the cold main & below the stop cock. Dead centre too. Water everywhere on the kitchen, couldn’t find the outside stop tap so I crushed the pipe to stop the flow a bit. I hunted around & found an old stop cock behind the washing machine & turned it off. Water stopped but that old tap is now dripping. Tried to do the gland but won’t work. Where I crushed the 15mm pipe I cut it out but where it comes out of the concrete floor it’s curved & the straight coupler does have quite enough pipe to fit properly. It’s ok but I’m not happy with it. It the woman overfills the sink cupboard as we all do I fear it’ll leak or come off. The old stop tap needs renewing, she wants it done, I think it’s 22/25 mm black plastic out of the floor to 22mm copper then 15mm back under the floor to the sink cupboard about 2m away do not far. My plan is to renew the stop cock but go to the sink cupboard in 15mm and connect to where I’ve renewed today so the underfloor pipe will not be needed. Any thoughts? My confidence is shattered so I need to get back quickly if I can. Cheers all  |
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Post by tomplum on Jul 20, 2020 18:24:41 GMT
Hi Rocky we all get bad days, the black pipe if its about 22mm, Its very likly 1/2 black alkathene pipe, So you need a 15-21mm to 15mm tranition fitting, your local plumbers merchant will have them, that will get you from the black alkathene to 15mm copper, then go from there in 15mm
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Post by rocketmanbkk on Jul 20, 2020 18:31:05 GMT
Hi Rocky we all get bad days, the black pipe if its about 22mm, Its very likly 1/2 black alkathene pipe, So you need a 15-21mm to 15mm tranition fitting, your local plumbers merchant will have them, that will get you from the black alkathene to 15mm copper, then go from there in 15mm Thanks Tom |
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Post by crowsfoot on Jul 20, 2020 19:05:27 GMT
Sounds like a good plan rocky. After a bad day we bounce back tomorrow. Another idea.... Looks like the conversion from black alkathene to copper is in the stoptap itself so what you could do is just change the top part of stoptap - mind you it will be tight so remove it from the alkathene pipe first and give it plenty of heat from the blow lamp in order to loosen it. The top off a yorkshire stop tap (501) would be best to swap it with because it will be of the same thread. I've done a lot of these top changes. The only worry I have for you is does that main that's under the floor tee off to somewhere else? Good luck rocky and yes it sounds like another one of your tricky special jobs that you always seem to get.  Keep us posted. |
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Post by rocketmanbkk on Jul 20, 2020 19:11:24 GMT
Sounds like a good plan rocky. After a bad day we bounce back tomorrow. Another idea.... Looks like the conversion from black alkathene to copper is in the stoptap itself so what you could do is just change the top part of stoptap - mind you it will be tight so remove it from the alkathene pipe first and give it plenty of heat from the blow lamp in order to loosen it. The top off a yorkshire stop tap (501) would be best to swap it with because it will be of the same thread. I've done a lot of these top changes. The only worry I have for you is does that main that's under the floor tee off to somewhere else? Good luck rocky and yes it sounds like another one of your tricky special jobs that you always seem to get. Keep us posted. Cheers Yes, there’s a combi boiler above that stop Tap so I was going back tomorrow to trace the pipes to the boiler & see where they go upstairs. I hope they just come under the floor a bit. It’s another job gone bad but my fault this time as I hit the pipe! Fingers crossed. |
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Post by crowsfoot on Jul 20, 2020 19:28:05 GMT
You can't blame yourself for that rocky it's just fate/bad luck. I always have a chuckle to myself when reading the installation instructions and it says not to drill any pipes (as if anyone would deliberately do that ) |
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Post by rocketmanbkk on Jul 20, 2020 20:12:00 GMT
You can't blame yourself for that rocky it's just fate/bad luck. I always have a chuckle to myself when reading the installation instructions and it says not to drill any pipes (as if anyone would deliberately do that ) Yeah, first time, I measured it 5+ times as it was in between 2 meter boxes. Couldn’t believe it when I heard the hisssssss. Luckily it’s a nice customer. |
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Post by rocketmanbkk on Jul 21, 2020 15:51:01 GMT
UPDATE
I popped to see the job again.i think there’s a reason why no one has ‘fiddled’ with the old stopcock & put a new one under the sink so it’s fully open & isn’t dripping so I’m not going to touch it.
I am however going to try & dig around the pipe in the floor to try & expose a straight bit & connect onto it. It’ll put my mind at rest that it’s done properly.
Cheers all
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Post by rocketmanbkk on Jul 21, 2020 15:53:04 GMT
 It looks like it’s coming towards the front. I’ll be careful. |
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Post by crowsfoot on Jul 21, 2020 19:17:56 GMT
I think I'm putting it together better now rocky in that pic 1 is the original stop tap from which the mains has been diverted under the floor at some time in the past into another room (kitchen) then brought back up and a 2nd stop taps been added (pic 2) and it was below this 2nd stop tap that you caught the pipe with the drill?
It doesn't look to be buried to deep that pipe and there does seem to be some water on the floor around it so is something leaking?
Is that the hot water pipe next to it that's also been buried?
If there's no leaks I'd be tempted to leave it as it is in pic 2 - chopping up concrete and trying to find a good bit of pipe to connect to can be very difficult to do especially if the hot pipes down there as well.
Good luck.
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Post by tomplum on Jul 21, 2020 20:03:37 GMT
yes, I agree with Tappy,unprotected copper in concrete can be a nightmare and you may open a tin of worms, If that copper is pin holed because the concrete has 'eaten' it, You could be digging a hole for yourself rocky, Make your customer aware of it before you get in too deep,  |
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Post by rocketmanbkk on Jul 22, 2020 11:32:20 GMT
I think I'm putting it together better now rocky in that pic 1 is the original stop tap from which the mains has been diverted under the floor at some time in the past into another room (kitchen) then brought back up and a 2nd stop taps been added (pic 2) and it was below this 2nd stop tap that you caught the pipe with the drill? It doesn't look to be buried to deep that pipe and there does seem to be some water on the floor around it so is something leaking? Is that the hot water pipe next to it that's also been buried? If there's no leaks I'd be tempted to leave it as it is in pic 2 - chopping up concrete and trying to find a good bit of pipe to connect to can be very difficult to do especially if the hot pipes down there as well. Good luck. There’s nothing leaking now. The floor & everything around was soaked! I think I’ll leave it as it is. |
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Post by crowsfoot on Jul 23, 2020 7:51:28 GMT
If it ain't broke..................
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Post by rocketmanbkk on Jul 23, 2020 15:05:49 GMT
Had a call, slight weep, need to go back.
I’m going to dig the floor out & find a straight bit of pipe.
Nightmare
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Post by rocketmanbkk on Jul 23, 2020 15:12:39 GMT
Can I go in the floor from the copper to plastic pipe the copper again above floor?
If so, will brass compression be ok with inserts for the plastic pipe?
Cheers all
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