Homedude123
Member
I have a hot/cold plumbing crossover issues and would love to get your expert help in identifying and solving.
I was getting some warm water out of cold faucets right after I turn on the cold water, which would gradually turn back to cold. Suspecting a crossover, I wanted to run through a diagnosis steps i found on this forum.
I shut off cold water supply to my heater, and turned on a hot water faucet in a bathroom which had separate cold and hot knobs. Water was running hot for a while and turned cold and continued running. Flow of water pressure wasnt different at all. It didnt slow and same as cold side.
i remembered this issue was more noticeable in the master bathroom. Like super hot water would come out of cold faucet in the master bath and warm water everywhere else.
We only recently started having this issue which may suggest something that failed recently. I do have single mix faucets in showers but given the hot water faucet flow didnt even slow at all, i suspected something else.
Can you guys take a look at my master bathroom hot tub plumbing (Attached) and see if this could be an issue?
Basically as far as I can see,
1) hot and cold service line gets attached to each side of this “mixing valve”. Cold line has a T that goes to the cold control knob. Hot water doesnt have a T but a “mixed” red line in the picture routes to the hot control knob. How does this mixer thing work and is there a way to test/ fix this?
in the other picture, you can see cold water from T and mixed red goes to knobs and flows down to a W shaped mixer and sends water to faucet.
any help is much appreciated!
Thanks!
I was getting some warm water out of cold faucets right after I turn on the cold water, which would gradually turn back to cold. Suspecting a crossover, I wanted to run through a diagnosis steps i found on this forum.
I shut off cold water supply to my heater, and turned on a hot water faucet in a bathroom which had separate cold and hot knobs. Water was running hot for a while and turned cold and continued running. Flow of water pressure wasnt different at all. It didnt slow and same as cold side.
i remembered this issue was more noticeable in the master bathroom. Like super hot water would come out of cold faucet in the master bath and warm water everywhere else.
We only recently started having this issue which may suggest something that failed recently. I do have single mix faucets in showers but given the hot water faucet flow didnt even slow at all, i suspected something else.
Can you guys take a look at my master bathroom hot tub plumbing (Attached) and see if this could be an issue?
Basically as far as I can see,
1) hot and cold service line gets attached to each side of this “mixing valve”. Cold line has a T that goes to the cold control knob. Hot water doesnt have a T but a “mixed” red line in the picture routes to the hot control knob. How does this mixer thing work and is there a way to test/ fix this?
in the other picture, you can see cold water from T and mixed red goes to knobs and flows down to a W shaped mixer and sends water to faucet.
any help is much appreciated!
Thanks!
