Minimum Water Flow
Posted: Sun Apr 11, 2021 11:21 pm
Can anyone tell me the water pressure and flow necessary to maintain a consistent flow of hot water. In 1017, as pert of the restoration effort, I replaced all plumbing and fixtures. I also installed an Atwood on-demand water heater.
The heater puts out very hot water. The bathroom sink works great. But the kitchen sink and bathtub are unreliable. I have to turn the bath faucet 3/4 on before getting warm water to the other two.
I’ve tried it with the 12v pump as well as shore water. I have a 45psi pressure limiter for the shore water. In either case, the water to the kitchen sink and bathtub is inconsistent.
I do know the the Atwood heater require a minimum 1.5 gph to activate. I’m beginning to wonder if I have too many pex elbows, tees, etc. I’m beginning to think it’s a combination of marginal pressure and flow.
I thought of repiping some of the long runs in 3/4 pex ( now 1/2). Any input from the voice(s) of experience?
Btw-
We are now living in our camper on-site where our house is being built. We are thoroughly enjoying the features and comfort of this well-built home on wheels.
:
The heater puts out very hot water. The bathroom sink works great. But the kitchen sink and bathtub are unreliable. I have to turn the bath faucet 3/4 on before getting warm water to the other two.
I’ve tried it with the 12v pump as well as shore water. I have a 45psi pressure limiter for the shore water. In either case, the water to the kitchen sink and bathtub is inconsistent.
I do know the the Atwood heater require a minimum 1.5 gph to activate. I’m beginning to wonder if I have too many pex elbows, tees, etc. I’m beginning to think it’s a combination of marginal pressure and flow.
I thought of repiping some of the long runs in 3/4 pex ( now 1/2). Any input from the voice(s) of experience?
Btw-
We are now living in our camper on-site where our house is being built. We are thoroughly enjoying the features and comfort of this well-built home on wheels.
: