Low hot water pressure

[skippers_1]

i have very low hot water pressure the cold works fine.
i took the hot line off at the tank to look for a check valve didnt see one .
Called suburban they said they dont put check valves on their tanks.
Any other suggestions ??

Thanks, Rich

[Dr4Film]

Look for possible calcium buildup in the delivery system somewhere. Not knowing your exact water system, you will need to trace out to see if there is a small screen that may be blocked with calcium or lime or some other junk. Is the low pressure on one faucet or everything?

Dr4Film ----- Richard.

[skippers_1]

Quote:

Originally Posted by Dr4Film Look for possible calcium buildup in the delivery system somewhere. Not knowing your exact water system, you will need to trace out to see if there is a small screen that may be blocked with calcium or lime or some other junk. Is the low pressure on one faucet or everything? Dr4Film ----- Richard.

The low pressure is only on the hot water side , all fixtures.
Cold pressure is fine.
Rich

[Spoonman]

Do you have a mixing valve on your water htr? Neighbors have atwood with watts mixing valve which needed adjusting after 1st yr of use.

[Dr4Film]

I agree, check all of the valves in the hot water delivery system making sure they are all the way open. Maybe one of them is only partially open. If I remember correctly when I had a 6 gallon Atwood heater, there were many valves, normal and bypass in the delivery system.

Dr4Film ----- Richard.

[powerboatr]

are all the hot water faucets low on pressure?
if so kill power to the tank and turn off the propane switch for the water heater
let it cool by running warm water out of the faucets until its cool enough to touch

turn off water to the coach, open a faucet to relieve pressure and leave it open

remove the anode rod and use a small tube of sorts and flush out the tank, you will be surprised what flushes out.

if you can get to the back side
disconnect the upper line that leads out to supply hot water.
then back flush that fitting
there may be a check valve which will need to be removed before you can flush
the fitting, crud gets trapped there.
then flush the whole thing again and re-assemble
fill tank with water by opening a hot faucet and let it run until all the air is out
then turn on the water heater to make hot water.
you can check the flow without the water heater being on,, in case you need to re flush the tank
a suburban tank should be flushed every couple months or so

[Retired and Happy]

I had the same symptoms a few years back. As described above, several flushings cleared the problem and I haven't had a problem since.

[skippers_1]

Thanks to all It is fixed (I Hope) .
Dont ask me what I did, I dont know what worked < I flushed every line I could get to.
Back flushed the water heater, some crud came out but I expected more.
Got all the air out of the lines , even flushed the lines from the demand pump.
Thanks again to all, I sure am glad I didnt have to spend $600+ on a new water heater.

Rich