Low hot water flow
Comments appreciated. Our motor home has the standard 6 gal. water heater. What has started happening is that the flow out of all hot water faucets is down to 10 to 20% of normal. The water heater is ...
Forum Discussion
Could be a faulty check valve on the outlet of the HW heater.
Found this on the crossroads forum:
No Hot Water!
Mid-morning and out of the blue there was no hot water from any faucet in the RV. I opened the water heater pressure relief valve to learn that water was being supplied to the heater.
I regretted not flushing the mineral deposits from the water heater for the past 5 months. I figured the deposits had built up and clogged the heater output. I turned off the water heater and opened the low point drain to depressurize the system, once the heater drain plug was removed I flushed the deposits from the heater using a ¼” OD Teflon tube under full camp ground pressure. There were not an unusual amount of deposits. So, I bit the bullet and removed the brass check valve from the water heater output to find it in pieces.
I spent $14.00 for a cheap grey plastic check valve from the only RV place in town and screwed it into place. We re-pressurized the water system and turned the water heater on. So far, so good.
I think this check valve is just for winterizing and I am tempted to replace it with a manual shut-off valve.
Found this on the crossroads forum:
No Hot Water!
Mid-morning and out of the blue there was no hot water from any faucet in the RV. I opened the water heater pressure relief valve to learn that water was being supplied to the heater.
I regretted not flushing the mineral deposits from the water heater for the past 5 months. I figured the deposits had built up and clogged the heater output. I turned off the water heater and opened the low point drain to depressurize the system, once the heater drain plug was removed I flushed the deposits from the heater using a ¼” OD Teflon tube under full camp ground pressure. There were not an unusual amount of deposits. So, I bit the bullet and removed the brass check valve from the water heater output to find it in pieces.
I spent $14.00 for a cheap grey plastic check valve from the only RV place in town and screwed it into place. We re-pressurized the water system and turned the water heater on. So far, so good.
I think this check valve is just for winterizing and I am tempted to replace it with a manual shut-off valve.
