Originally Posted by Ralph A
Our hot water flow from all faucets and shower is about 25% of what the cold water flow is on our 2005 Itasca Horizon. We have been parked for several days and suddenly the hot water flow problem developed. Prior to this the hot water flow was about 75 - 80% of the cold. The condition is the same on city water or on-board pump. We use a whole house filter and all the aerator screen type filters for every faucet have been checked and cleaned. Our 10 gal. hot water heater was replaced about 18 months ago. Any suggestions will be appreciated.
If you have spent time in the Reo Grande Valley I think I know what might be happening. Many areas have heavy minerals in the water. But the Valley beats them all
. My water heater was so full of "fish scales" that I could hardly get it clean the first time I flushed it.
What I suggest is that you start by flushing your heater if you have not done so recently. Remember to shut the heater down before doing this and run the water till it is cold. Shut off the water supply, remove the drain plug and lift the TP valve handle. After you are satisfied it is as clean as you can get it ( I use a wire to stir around in the tank) remove the stem from each hot water faucet and check for junk in the passages. Also remove the airaitor screens and clean them.
After all of this is done turn the water back on and check for leaks. If none of this works, the check valve suggested by Clay L may be the problem. Make certain to get all of the air out of the system before turning the heater back on.
I hope you get this problem fixed sooner than later. No way to have to spend your off time.