We moved into a new house and the shower takes a very long time to get warm enough to use. I do not know exactly what type of shower control but it looks similar to the foundations monitor 13 series. The angle on the markings between the full off and the full hot is about 135 degrees but handle only rotates 90 degrees. I think this is why it takes so long to get warm but the plumber says that is they way they are made. He says they don't rotate the full 135 degrees even though the marking shows differently. His solution is to turn the water heater up to almost the highest temperature. I am concerned that someone will get scalded if I do that. Is the plumber correct or just trying to get out of fixing the problem?
Hi David, Thank you for your question. The movement on the handle of a 13 series tub/shower faucet is approximately 90 degrees. The cartridge is equipped with a rotational limit stop that allows you to set the max hot water temperature. Here is a link to a How to adjust the rotational limit stop video.
The faucet will control the water temperature, but the house hold plumbing system will control how long it takes the water to get hot. If the faucet is a long distance away from the waterheater it will take the hot water longer to get to the faucet.
Date published: 2018-04-02