With mystical powers of divination I will predict the Miss Peggie will recommend
a cup of white vinegar, once a week, if the head is used frequently. Pump it
partway through the system so it sits for a while, then flush it out.


"Brian W. Thompson" wrote in message
...
Peggy:
I remember some time back you mentioned here about the build up of "Urea
Crystals" (?) in the sanitation hose. Well I just replaced a hose that after
almost 20 years was totally blocked. The question is should something be
flushed through the system periodically to prevent this buildup - if so what
is it?
Thanks
Brian Thompson