msw3113
Well-known member
I've only used the 10-year old freshwater pump (Shur-Flo 2088-422-144) one time to put antifreeze into the lines, and it seemed to function satisfactorily.
Today I tried to sanitize the system in preparation for a trip of some length. Blew out all the lines, nearly-filled the freshwater tank and added bleach. Turned on the pump, ran water in the shower and was pleased by the strength of flow. For about 10 seconds, after which the flow deteriorated to a weak stream. I turned off the shower spigot, the pump kept running for a minute or so then stopped, after which pressure seemed to return but for only seconds, then returned to a pathetic dribble.
I ran bleach-water from the freshwater tank through all of the faucets at the rate of about 2 cups per minute. I then turned the outside shower to help drain the freshwater tank. Alas, the low-point drain is flowing faster than any of the pump-assisted faucets.
This can't be right. It seems that the pump works to pressurize the system, but thereafter cannot maintain a flow. This appears to be a straightforward system with no water softener or accumulator in the path. Should I be looking at a diaphragm kit, a new pump, some kind of valve, or something entirely different?
As always, I'm grateful for guidance. :-[
Today I tried to sanitize the system in preparation for a trip of some length. Blew out all the lines, nearly-filled the freshwater tank and added bleach. Turned on the pump, ran water in the shower and was pleased by the strength of flow. For about 10 seconds, after which the flow deteriorated to a weak stream. I turned off the shower spigot, the pump kept running for a minute or so then stopped, after which pressure seemed to return but for only seconds, then returned to a pathetic dribble.
I ran bleach-water from the freshwater tank through all of the faucets at the rate of about 2 cups per minute. I then turned the outside shower to help drain the freshwater tank. Alas, the low-point drain is flowing faster than any of the pump-assisted faucets.
This can't be right. It seems that the pump works to pressurize the system, but thereafter cannot maintain a flow. This appears to be a straightforward system with no water softener or accumulator in the path. Should I be looking at a diaphragm kit, a new pump, some kind of valve, or something entirely different?
As always, I'm grateful for guidance. :-[