"elper" wrote in message
...

Hello,
One of the aspects of boating is
getting your hands dirty or paying
someone else to! ;o)
If the head is mounted above the
waterline (thus without a loop) you can
check
the seacock is allowing water in by
disconnecting the feed hose at the
head.
If there is no water (or a loop) the
test/fix is to backflush the hose with
utility water
or compressed air, to see if it is
blocked or free.
The act of pouring a bucket of water
into the bowl and pumping it out primes
the intake pump as well as proving the
outlet is open... If the level just
drops
slowly without a significant increase
in resistance whilst pumping, the
likely
cause is one of the circlips (spring
washers) holding the plunger on the
shaft has failed (a frequent fault).
No level drop with a great increase of
resistance indicates the outlet is
blocked, either
with something you really don't want to
know about or a closed outlet valve (on
tank?)
or worse still, a full tank!

Poured water into it with the valve near the toilet set to the left (right
is to flush it). Water slowly drained in that position. Is that normal?
Flushing it was fine. Whew!

I think the problem has to do with unit being above the waterline. The
previous owner closed the seacock and consequently, it will not prime unless
I install a loop. I may just dump the Jabsco and go with the Raritan. I
can get one for $225 locally. Until then, I'll just pour water into it as
needed.

Thanks for your advice.

-Greg