My question is i have single knob "temptrol" faucets in my mid 80's built home, I recently replaced my water heater and notice the tub baths valves are not working correctly. The one in the walk in shower has been operating correctly but now we are remodeling our shower so we are going to use the tub bath, as i turn on the water and turn it all the way to the hot side it starts to lose water pressure on the hot side. I notice the tub bath on the other side of the house is doing the same thing, but the hot water works on the sinks and walk in shower fine. Did I do something wrong when i replace the water heater? Or did both cartridges take dump at the same time? It barely has enough hot water to take a shower or to activate the shower.
Your input would be greatly appreciated.