Microphor toilet and variable speed pump

[Pete Masterson]

A few weeks ago, I installed (as did several others) a variable speed
ShurFlo water pump to replace the (leaking) dual water pumps in my
coach. So far, I've been well satisfied ... but an unexpected issue
has come to light. We've found that the higher water pressure
available from the pump (65 lbs.) makes washing dishes and taking
showers more pleasant ... so even when parked where shore water is
available, we've tended to use the pump.

Recently, we noticed a problem with the Microphor toilet ... it was
not refilling after flushing and sometimes it would not flush
properly -- or you'd need to hold down the handle a very long time
for it to function as expected. After reviewing the troubleshooting
section of the Microphor documentation, I saw that the problems I was
having was due to "excess" water pressure. The Microphor is designed
to operate with 30 to 50 lbs of water pressure. If higher water
pressure is present, the very problems we were having may occur.

Others who have upgraded to a variable may want to take this into
consideration. Microphor suggests inserting a pressure limiter in the
water supply line to solve/avoid problems. (I just turned off the
pump -- we'll only turn it on for dishes and showers, now.)

Pete Masterson
'95 Blue Bird Wanderlodge WBDA 42
El Sobrante CA
aeonix1@...