10-22-2012, 03:02 PM
As a sidenote, Microphor's air/water sequnce valves do not appreciate high water pressure. We have not used Microphor for quite some time, but as I recall the maximum recommended Microphor pressure was around 50psi, and I think a factory rep once told me you should never exceed 85 psi on the manifold.
On some older coaches the Headhunter pump was installed so that it added pressure to the city water input pressure. Many people don't realize the Headhunter pump does not have a pressure sensor per se, but rather uses a water wheel and a time delay method that stops the pump a short interval after water stops flowing. I have seen pressures in excess of 100 psi where both the city water and Headhunter pump were being used simultaneously.
I suggest checking your water gauge in the plumbing bay when ever you hook to city water. Open the faucet so that the Headhunter comes on and then when the pump shuts, if your water pressure exceeds much more than 60 psi, either turn off the Headhunter pump, or use city water to fill the tank and then work off the headhunter.
On some older coaches the Headhunter pump was installed so that it added pressure to the city water input pressure. Many people don't realize the Headhunter pump does not have a pressure sensor per se, but rather uses a water wheel and a time delay method that stops the pump a short interval after water stops flowing. I have seen pressures in excess of 100 psi where both the city water and Headhunter pump were being used simultaneously.
I suggest checking your water gauge in the plumbing bay when ever you hook to city water. Open the faucet so that the Headhunter comes on and then when the pump shuts, if your water pressure exceeds much more than 60 psi, either turn off the Headhunter pump, or use city water to fill the tank and then work off the headhunter.