Plumbing Advice Please
Discussion
schueymcfee said:
So I broke the toilet.
Now, I got a new one but the mains water supply fitting is plastic (the old one was metal), when I connect the mains to the underside of the loo it drips slightly even with PTFE tape on. Is there a knack to metal to plastic fittings?
You're supposed to connect the mains (15mm copper) to the cistern
The 4" plastic jobbie is the waste; if that's what you mean there should be rubber gasket thingies in it...simpo two said:
So I broke the toilet.
Now, I got a new one but the mains water supply fitting is plastic (the old one was metal), when I connect the mains to the underside of the loo it drips slightly even with PTFE tape on. Is there a knack to metal to plastic fittings?
You're supposed to connect the mains (15mm copper) to the cistern
Nope, the inlet for the mains water is plastic, the overflow is one of those new internal jobs.
schueymcfee said:
So I broke the toilet.
Now, I got a new one but the mains water supply fitting is plastic (the old one was metal), when I connect the mains to the underside of the loo it drips slightly even with PTFE tape on. Is there a knack to metal to plastic fittings?
Did you fit a new washer inside the brass nut of the connector? If not then replace it with a new one and don't over tighten. You need a 15mm, fibre, tap connector washer. Putting PTFE tap on the thread is a waste of time, the seal is made by the washer.
kerfuffle said:
Hijack: following recent work I now have loads of thick copper piping, which I was about to chuck in a skip. However I've been told it's worth money. Any idea how much and where I can sell it?
Alternatively, it can be a good bribe to the skip van driver when you've grossly overloaded your skip...
i.e. the saving you make by not needing a 2nd skip may be worth more than you'll get for flogging the pipe.
>> Edited by pdV6 on Tuesday 6th December 15:36
schueymcfee said:
So I broke the toilet.
Now, I got a new one but the mains water supply fitting is plastic (the old one was metal), when I connect the mains to the underside of the loo it drips slightly even with PTFE tape on. Is there a knack to metal to plastic fittings?
You're supposed to connect the mains (15mm copper) to the cistern
Nope, the inlet for the mains water is plastic, the overflow is one of those new internal jobs.
Normally the plastic pipe has to have a little sleeve inside it to keep it stiff (oo er missus) so that the push on fitting will work. Does your pipe have a little sleeve in it?
Good luck
ntel said:
So I broke the toilet.
Now, I got a new one but the mains water supply fitting is plastic (the old one was metal), when I connect the mains to the underside of the loo it drips slightly even with PTFE tape on. Is there a knack to metal to plastic fittings?
Did you fit a new washer inside the brass nut of the connector? If not then replace it with a new one and don't over tighten. You need a 15mm, fibre, tap connector washer. Putting PTFE tap on the thread is a waste of time, the seal is made by the washer.
This sounds about right, there is water coming from underneath the nut where the pipe meets the nut rather than above where the nut connects to the loo. And there is only metal inside no fibre.
>> Edited by schueymcfee on Tuesday 6th December 16:37
muley said:
So I broke the toilet.
Now, I got a new one but the mains water supply fitting is plastic (the old one was metal), when I connect the mains to the underside of the loo it drips slightly even with PTFE tape on. Is there a knack to metal to plastic fittings?
You're supposed to connect the mains (15mm copper) to the cistern
Nope, the inlet for the mains water is plastic, the overflow is one of those new internal jobs.
Normally the plastic pipe has to have a little sleeve inside it to keep it stiff (oo er missus) so that the push on fitting will work. Does your pipe have a little sleeve in it?
Good luck
Nope, it's not a push on fitting, it screws on.
schueymcfee said:
So I broke the toilet.
Now, I got a new one but the mains water supply fitting is plastic (the old one was metal), when I connect the mains to the underside of the loo it drips slightly even with PTFE tape on. Is there a knack to metal to plastic fittings?
You're supposed to connect the mains (15mm copper) to the cistern
Nope, the inlet for the mains water is plastic, the overflow is one of those new internal jobs.
Normally the plastic pipe has to have a little sleeve inside it to keep it stiff (oo er missus) so that the push on fitting will work. Does your pipe have a little sleeve in it?
Good luck
Nope, it's not a push on fitting, it screws on.
Ah ! OK, in that case I'm with ntel. New washer should do it.
that the newer loo is smaller and therefore the copper pipe doesn't go direct into the cistern. 
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