Why does the water temperature change in the bathtub and shower faucet

Question

The tab in the kitchen and bathroom are good and warm or hot when turned on in the hot position. Turn on the hot water in the bath tub or shower faucet and it goes cold quickly. Why need help?

GrandmasHouseDIY · Answer

What kind of hot water heater do you have? The answer here will have a lot to do with how close your hot water heater is to each individual line of hot water that is run. There is also the very likely chance that your hot water pipes that run to your sinks are wrapped in insulation while your tub hot water line is not? Or your tub's hot water line could pass through a 'cold space' (an outside wall etc).

Wanda medeiros · Answer

A gas hot water tank and it is about 15 ft from the bathroom. It is a condo and not very big. Turn the water in in the kitchen and bathroom sink and it is very hot.

The Garden Frog with C Renee · Answer

Your problem is your shower valve which needs replaced. There is a regulator temperature thingy in there to regulate the hot water so you do not scald yourself. These go bad sometimes. You can check the temperature the valve is set on by accessing where the water pipes are for the tub and shower. there may be a lever and markings for temperature and maybe you can adjust it first before replacing it. this is one possibility it could be.

Wanda medeiros · Answer

Thank you, we will first check this.

Johnchip · Answer

It is the regulator. It is built into the tub/shower faucet. It is an easy fix. I would have a plumber do it. I would expect to pay 75-100 maybe a bit more. But do it right. it is a one to two hour job for a guy to do it off Craig's list on a Saturday who knows what he is doing. (get references) It does involve taking out the plumbing at the source replacing major valve, but it is a simple process, but not one i would reccomend a DIY guy take on. as you need the right tools.

Alton · Answer

It will do that if you have a well and the pump first comes on .

Duv310660 · Answer

Try insulating your pipes as well as checking your shower valve, just for energy efficiency.

Ama4412994 · Answer

You have a problem with your balance control replace the cartridge

Wanda medeiros · Answer

Thank you, we changed the cartridge and working perfectly. Hot water consistent.

Lisa House · Answer

I love how this website helped solve this problem!

Redcatcec · Answer

It is the regulator valve, we had a tub taken out and a walk in shower put in, the contractor was not familiar with the regulator valve, but someone in his company was. Only luke warm/barely warm water was coming out, not a pleasant shower experience.

Why does the water temperature change in the bathtub and shower faucet

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Why does the water temperature change in the bathtub and shower faucet

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