For the seriously sad folk who are interested in
waterpumps and the delights of boat maintenance and anyone employed by Jabsco:
You know how things always go wrong at the least convenient
times? Well, we had fired up the genset, loaded the washing machine and were
pottering about “doing things” when the Captain noticed a red flashing light on
our nice Miele machine. The machine is nice, not the red flashing light of
course. It was warning us of a blocked inlet filter according to the very
Germanic instruction book. Now, removing the machine is another job from hell.
You would have to take the door off, protect the wooden floor, remove the
retaining timberwork and then try to wriggle it forward out of the snug little
recess it lives in. Oh yes, really looking forward to doing that to access the
water inlet filter.
In desperation, the Captain looked for other causes and
found one. The water pressure was very very low. More a dribble than a flow
through the taps. Hum. Off to inspect the fresh water pump which still looked
like one even if it didn’t behave that way. Seemed that it was not only low on
pressure but also just switching itself off from time to time for no obvious
reason. No signs of air locks, power supply problems or anything similar so
time to remove it and fit the spare that we have.
Spare is a grand term. It is the original pump which we wore
out after a couple of years and rebuilt with a “repair kit”. The pumps are
feeble things and get lots of negative feedback from all the live-aboard
cruisers for having a very short life.
So, pump removed, spare fitted and switched on. Firstly it wouldn’t
prime. Secondly, the outlet fitting was dripping. Not an auspicious start. New
O ring fitted, it still leaked.
The inlet and outlet fittings are, in the Captain’s humble
opinion, junk. One O ring and a simple slide clip that hold the fitting in
place. Much movement and the O ring gets distorted and they leak. This poor
solution is exacerbated by the boat builders who fit solid pipework on the
outlet side so getting the thing even vaguely aligned is very hard. Still, we
tried. Twice. Finally leak free but the pump still refused to prime. So happy
as it was Friday afternoon and of course the “next day delivery” for a new pump
was only possible for orders up to 2pm…… (No chandlery in Wales seems to stock
our pump as it is the higher capacity Jabsco “Sensor-Max” unit, most boats use
the smaller one)
So, after stripping down both pumps and trying to build one
working one (motor and sensor from the first pump, diaphragm assembly from the
second) we had water again but only at a low pressure. Grr. Our original (2010)
plan to have a backup unit permanently fitted in the system was messed up as
the bulkhead has no space on it. The boat was built with a second little diesel
heater that allows you to warm the heads (toilet and shower compartments for
the non-boaters) without firing up the main system. That is mounted right next
to the water pump:
Of course, the hybrid pump kept us going sort of until
Tuesday morning when a new one was delivered and fitted – with the same water
leak past the new O ring. Seems a common thing as Stephen (for regular blog
readers, you have already met him. He is the trolley shopper, sailing and clay
pigeon shooting expert) also had fun with a replacement last summer in France.
Dear Mr Jabsco – if you have started supplying smaller O
rings, then stop it. Also, please re-engineer the pipe fittings from simple
slide clips to something more substantial. Guess what – stuff gets shaken about
at sea and fittings move you know, especially when the pump is rubber mounted
to cut noise and vibration. Time to get serious and totally re-plumb things
this winter using a 240v commercial AC pump with the feeble 24v leisure thing as
a backup….
The one silver lining to this large Cumulo-nimbus cloud? At
least we didn’t have to wrestle the washing machine out of its den.