"Alec" wrote in
:

Is there a known problem with these units? Does the magnet ever wear
out? The unit is probably 15 or so years old. can a new paddle wheel
help?



Ours quit and it took us a while to find the totally corroded into oblivion
stupid little terminal strip the previous owner had installed in the bilge
to keep from having to pull a whole new cable....very well hidden under
some other stuff in the bilge.....

I don't think they ever wear out. The wheel will wind up any crap that
passes by it, however.

Has your yard worked anywhere near the hull fitting it fits into? I fixed
one for another boater who was baffled. The stupid yard birds had put the
damned thing in BACKWARDS and the paddle wheel cups were pointed AFT
instead of forward when it was in place. ON another one, a Sonar
transducer had been added FORWARD of the log, creating an eddy current
behind it, disrupting the flow over the paddle wheel. Duhh....(c;

Has anyone added some new fitting ahead of it? It's also a thought.

"Oh, it was just working last weekend!", another told me. When I pulled it
out of the sea chest to have a look you couldn't even SEE the paddle wheel
buried in THAT MUCH SEA FUZZ! "I have my hull regularly cleaned.", he told
me. We had another diver go take a look. He came up pitching a fit
because the ******* that was SUPPOSED to clean it only cleaned it down to
where the hull went under where you couldn't see it.....He's FIRED.

If you can consistently blow air across the wheel and get a nice, steady
reading faster than the boat can go, I'm voting for something underwater
disrupting the flow over the tiny bit the wheel protrudes into the
slipstream of seawater.