Steve Wood <[EMAIL PROTECTED]> wrote: >There was a 12V Bolin pump already on Bream when I bought the boat some >8 years ago. After a few month months use (liveaboard) it failed and I >bought another one at £130 from Kuranda. That lasted two years then the >motor gave up. I decided to try a different make (I forget which one.) >After less than 12 months that one failed and I decided to go back to >the Bolin as it was MUCH quieter and had lower current draw. The new one >again lasted a couple of years then the motor died.
Having had a couple of circulation pumps fail, I considered a (24 V) Bolin a few years ago. I even phoned the charming Ms Bolin in Sweden about the product, and was told it had a very long expected working life. So I bought one. It lasted less than two years, slightly worse than the other pumps I had been using. I then went to see Cleghorn Waring (which is near Stevenage, rather than Stockholm), and had a long talk with one of its folk. He said that small circulation pumps had mostly had shortish lives (about 2,000 hours) so far, but a new type of bearing was imminent which should extend that substantially. I therefore went back to a Johnson (forecast life 1,600 to 2,000 hours), and am on my third year with it (it may now be getting slightly noisier, although I may be oversensitive to it). It cost quite a bit less than the Bolin. I hope the new bearings have arrived by the time I have to replace it. It (and most others, I think) now drives the impeller magnetically, rather than by a shaft through the housing, so it is much less likely to leak than its predecessor models. However, as I now have shore power again, I am thinking of putting in (in parallel) an AC pump for when I'm at my home mooring, which is most of the time the heating is on. They are much more durable. Adrian Adrian Stott 07956-299966
