Forum Title: Hot water everywhere but showers
So recently I have been having this problem: The two showers (both upstairs, and about 15 feet from each other) can only get lukewarm water. Meanwhile, all the sinks get scalding hot water. * We have brand new Rheem 50 gallon gas water heater. * House was built in late 60's I've tried so far: 1) Heater was set by installer at 130. I raised it to around 135 with no luck. I read that it might be too hot and triggering anti scald device, so I lowered it to 120. Water got a little colder in shower. 2) I took shower head off the one shower and let water shoot straight through pipe, still luke warm So we know it can't be a shower component, as it would be a huge coincidence that both showers stopped working at same time. I don't know a lot about plumbing, but I've read it could likely be the mixing valve? So my question is- is there one mixing valve for each shower? There is an access panel for the one shower, but I don't seem to have access to the bedroom shower pipes. The one I have access to looks like this: I am not the handiest person, but I can follow instructions and figure some things out. So can someone at least point me in the right direction?
Category: Plumber Post By: PHYLLIS RUSSELL (Miami Beach, FL), 12/10/2016

I have never done it before, but I can look it up on you tube. I am thinking some debris go in there? When they installed my new water heater 2 weeks ago some black water, then cloudy water initially came out of the faucet. Clogged the mixing valve maybe? btw, thanks Air Force (Army myself)

- LORRAINE DAY (Oshkosh, WI), 09/01/2017

Quote: Originally Posted by BradPan I have never done it before, but I can look it up on you tube. I am thinking some debris go in there? When they installed my new water heater 2 weeks ago some black water, then cloudy water initially came out of the faucet. Clogged the mixing valve maybe? btw, thanks Air Force (Army myself) Anything is possible. There are small tools in the shape of a U that you can use to remove the PEX. You use them based on the size you need, in your case 1/2. You just snap the tool over the PEX and push onto the fitting and at the same time pull the PEX away from the fitting. This will retract the teeth inside the fitting and allow you to pull it out. If you're unable to get one of these, I've used an adjustable jaw wrench in the same manner. Thanks for your service ! Are you currently Army?

- ELIZABETH JONES (Elyria, OH), 09/02/2017

To test if there's hot water before that mixing valve in the photo, you can pop that pex out of the sharkbite fitting on the hot side and run it into a bucket. See how hot that water is then. You'd obviously need to have a the water off first, then have a helper turn it back on for a short time to fill the bucket. If it's hot, then your issue is with the mixing valve. Do you know how to remove pex from sharkbite fittings?

- ROSS NAVARRO (Glendale, AZ), 09/04/2017

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