DarkKnight
New Member
I repiped a large section of under-slab copper with PEX in the ceiling plus all new copper in the utility room from the main cold supply in the floor to the HWH right next to it and above that is where the PEX comes in. New expansion tank & associated piping. Also, completely new copper under the kitchen sink feeding the Dishwasher, Fridge, sink, and outside spigot. I'm still getting foamy water on the hot side that comes when the hot water reaches the tap. I've flushed the lines repeatedly and ran the shower 4 or 5 times for about 30 minutes at a time. The foam seems to be getting a little less, but I'm afraid to depend on the water to do dishes or laundry. Any thoughts on to how long this will take to flush?
I used MAPP gas, Oatley water soluble flux, and a combination of an old roll of Lennox lead free solder & new Oatley LF solder. I fluxed both sides of each joint and wiped the outside of the fittings thoroughly when I was done. Some of the joints were really hard to get to and may have gotten overheated a bit. Not one leak in the whole project when I was done though. I'll see if I can post some pictures later.
I don't think it's relevant, but I used Sharkbite to NPT fittings between PEX and copper to minimize the number of O-rings I was depending on not to leak. I coated the outside of the PEX ends with silicone grease, and deburred the them to help protect the o-rings as they were seating. A handful of the NPT fittings, like the expansion tank and spigot were done with Teflon paste. All the threaded fittings in the lines beween the source any where the water would get consumed were done with Teflon tape. I think that covers everything.
I used MAPP gas, Oatley water soluble flux, and a combination of an old roll of Lennox lead free solder & new Oatley LF solder. I fluxed both sides of each joint and wiped the outside of the fittings thoroughly when I was done. Some of the joints were really hard to get to and may have gotten overheated a bit. Not one leak in the whole project when I was done though. I'll see if I can post some pictures later.
I don't think it's relevant, but I used Sharkbite to NPT fittings between PEX and copper to minimize the number of O-rings I was depending on not to leak. I coated the outside of the PEX ends with silicone grease, and deburred the them to help protect the o-rings as they were seating. A handful of the NPT fittings, like the expansion tank and spigot were done with Teflon paste. All the threaded fittings in the lines beween the source any where the water would get consumed were done with Teflon tape. I think that covers everything.