SkeetMan44
New Member
I am rerouting a slab leak in copper lines through the ceiling bay. I am stymied as to why there are two 3/4" pipes entering/emerging from the slab when there is only one 3/4 coming off the cold water supply and then leading up to the hot water tank. They shouldn't be connected under the slab, should they. Anyway, the nearest to the main manifold emerges from the slab in a wall behind the downstairs powder room and a half off of that feed the toilet, before it dives back into the slab. It likely travels under the slab to emerge beneath a manifold in the wet wall of the laundry adjacent to that powder room. I believe I have all the 1/2" lines accounted for as far as to which fixtures they go, but that second 3/4 bugs me. It goes up the perimeter wall on the far side of the laundry and does not appear to have any 1/2" coming off it on the ground level.
There is a 1/2" hot coming down from the two sinks in the bathroom above as well as a 1/2" cold.
If it helps, the hot water 3/4" trunk has been isolated with a sharkbite before it enters the slab in the wall between the garage and the house.
Is this some kind of a loop and why can't I find where the loop connects?
If it helps, when I opened a cold tap for one of the above sinks, cold water gurgled out of the hot line that should be feeding the hot tap for that sink. That line was capped with a sharkbite on the manifold side of the cut. I believe the water gurgled out of the open cut below. Is there some kind of cross over between the hot and cold at the sink. There is a plastic tube that I think may connect the hot and cold tap somehow.
Thanks.
There is a 1/2" hot coming down from the two sinks in the bathroom above as well as a 1/2" cold.
If it helps, the hot water 3/4" trunk has been isolated with a sharkbite before it enters the slab in the wall between the garage and the house.
Is this some kind of a loop and why can't I find where the loop connects?
If it helps, when I opened a cold tap for one of the above sinks, cold water gurgled out of the hot line that should be feeding the hot tap for that sink. That line was capped with a sharkbite on the manifold side of the cut. I believe the water gurgled out of the open cut below. Is there some kind of cross over between the hot and cold at the sink. There is a plastic tube that I think may connect the hot and cold tap somehow.
Thanks.
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