I am in a 10 year old house. Custom built, very nice home. Twice in the last year, have encountered a leak under the slab.
- The first time about a year ago, I agreed to have the lines rerouted overhead in attic with PEX. Worked fine.
- This month, another leak happened in the other end of the house, again, the hot water side.
- The house was on a circulating pump that ran 24/7.
- We are on hard water that has a high pH factor out of the tap.
- I am going to have the entire house re-routed with PEX in the attic.
- We are in a fairly cold climate (Oklahoma) but the attic is well insulated and we are going to have them insulate the pex.
- I don't want to jack hammer up the floor every six months because it is an expensive wood floor, and tile in some areas.
Here's my question(s):
- Would the running water from the pump create more friction in the copper pipes thus creating a breakdown in the copper?
- Should I just re-route the HOT Water? The cold water line has yet to fail, and I would have to tear out some tiled shower walls where the outdoor faucets are, and prefer not to have to rebuild the showers, however, if the cold water is intent on failing soon, might as well replace both at the same time.