Thread: Plumbing problem.

I agree with Trout they've messed up the connection, more specifically I think they have joined the basin hot tap into the cold line as well. This explains why the bath is lukewarm, as it is getting both tempered and cold water, then when you turn on the basin most of the cold flows out of that and so the bath becomes hot.

Thanks for the answers. My apologies. More clarification (from me) is needed.

All the plumber did was remove a flex hose from within the wall and replace it with hard line. It was the cold feed that fed the toilet cistern, with no other hot or cold plumbing in that area. Ie its the end of the line.

Blknight, thanks for the detailed answer its a 3 port valve connect to a tee off the main hot water line and the two taps in question are on the oulet (ie tempered). My theory at the moment is that that air in the line at the far end is causing a weird pressure issue that means the water is lukewarm. What I couldnt understand was how if I turned on two hot taps, one was cold and one was hot!

I will poke my head under the house if i get a chance and try and figure out if theres a crossover somewhere. I checked it all out once it was installed and, apart from some weird routing in and out of the subfloor, I didnt notice anything oit of place.

Originally Posted by Disco-tastic

Thanks for the answers. My apologies. More clarification (from me) is needed.

All the plumber did was remove a flex hose from within the wall and replace it with hard line. It was the cold feed that fed the toilet cistern, with no other hot or cold plumbing in that area. Ie its the end of the line.

Blknight, thanks for the detailed answer its a 3 port valve connect to a tee off the main hot water line and the two taps in question are on the oulet (ie tempered). My theory at the moment is that that air in the line at the far end is causing a weird pressure issue that means the water is lukewarm. What I couldnt understand was how if I turned on two hot taps, one was cold and one was hot!

I will poke my head under the house if i get a chance and try and figure out if theres a crossover somewhere. I checked it all out once it was installed and, apart from some weird routing in and out of the subfloor, I didnt notice anything oit of place.

one going hot and the other cold can only happen if theres a cross over OR you have the 2 outlet port valve. (you dont) I'd almost be willing to bet that in the mess of routing theres been a cross join.

If you're lines havent purged the air by now who the hell plumbed them? the same guy who came up with S1 brakes or shed class clutch pipes?

You need to check the tap breeches in capped area of the house have washers in them and are turned off and mixers if you have them ,water can mix when other taps are turned on and cause this

I agree with Beachy, you have a leaking/passing combination set i.e. the hot and cold water taps are open/leaking and you haven't realised because they are capped, as normally water would run out the spout/shower but is now unseen.

The only one that could do that is the shower, and i only put a cap on the shower to keep crud out during demo and tiling. The taps to that were both off, though may have been bumped since. I wouldnt think they were open enough to allow that much flow though.

I'm hoping that once everything is back together it sorts itself.

By the way, I really appreciate everyones interest and input. Thanks all

If you have a cap on the outlet for the shower you must make sure you leave the mixer tap in the off position, if not you will mix the hot and cold
Sorry I haven't read all the thread but let me know if this helps
Chris

Well... Numpty alert.

When I installed the shower taps I thought they were hard closed. Turns out they were hard open.

You were all right. Thanks for repeating yourselves until I figured i should double check it.



Dan