Can a copper pipe slab leak (hot side) cause the other (cold side) copper pipe to leak?

CaliSkier

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We had a hot side copper pipe leak in our bathroom under the slab. The way we found out is the AC duct near buy was filling with water and we could hear it hissing/trickling
We did not cut the slab, just rerouted the line around the leak
1 month later there is another leak in the same spot, leaking into the AC duct, same scenario
We guess that the cold and hot lines run side by side.

Could the hot side leaking water around the ouside of the cold side caused a leak on the cold side?
 
No, the cause would be the same, corrosion from the outside or from stress. Shut the hot water off at the WH and then listen. How was the bypass done? It might be the hot side leaking again?
 
Cement? Don't know about your cement makeup but in st. louis 1960 houses built on slab with radiate heat copper would fail 20 years +. Lime would corrode the copper.
 
Cement? Don't know about your cement makeup but in st. louis 1960 houses built on slab with radiate heat copper would fail 20 years +. Lime would corrode the copper.
The same as the thousands of Levitt homes in Levittown, NY. All built on slabs with copper pipe for heating.
 
No, the cause would be the same, corrosion from the outside or from stress. Shut the hot water off at the WH and then listen. How was the bypass done? It might be the hot side leaking again?
Bypass was temporary, I am going to do a bath remodel eventually. The Bypass is a pex line in the room attached loosly to the walls.
 
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