Chris, This seems to have done the trick. Thanks! I tightened down the clamp around the rubber connector b/t the line in and the pump a bit harder than before. Then I ran the pump with the hose out of the reservoir to drain the boilers until the pump was clicking. When the boilers were fairly empty and the pump had been clicking for a minute or so, I put the in-take hose back in the reservoir, re-primed the pump, and refilled the boilers. Should that be sufficient for getting the air out of the pump?
So far I've had no more sqwarking for several days. I'm also hoping that this fix has improved the taste I was getting in my espresso. For a while (basically coterminous with when I had more frequent sqwarks) I had been getting a very strong tannin-like flavor in the cup along with an absence of the natural sweetness and high-tones that should be in the beans I was using. Now that I've eliminated the sqwark, so far I don't taste the foreign tannins anymore, though I'm waiting for some better beans to arrive to test it and know for sure. Espresso is improving = spirits are up! Thanks again, Marcus On Sunday, June 22, 2014 9:26:25 PM UTC-5, Sludgemaster wrote: > > Same think happened to me when I retrofitted with a rotary pump. > > It is caused by air in the feed water. Prime the pump and make sure that > there is no air leak in the hose feeding the pump. > > Chris > > > On 6/21/2014 9:38 PM, Marcus Mininger wrote: > > I have this same problem, though I have not measured a drop in pressure > (either on the pressurestat or with an external brew pressure gauge). It > does mainly happens if the pump has to work hard, like on a tight slow > pour, and it might sqwark (a pretty good word for the sound, BTW!) once > total or once every couple seconds for part of the pour. I'm not > mechanical, but the frequency and sound make it seem like a sqwark per > revolution of the internal mechanism on a rotary pump. > > The problem started happened infrequently maybe a year ago and has > gotten more frequent since. But part of the trouble in my case is that I > just replaced the pump maybe 2 years ago with parts and instructions from > WLL. I'm wondering: is it possible that I installed something incorrectly > that led to this so soon after replacing? Or does that sound like a bad > part? And either way, what to do now? > > Marcus > > > > On Saturday, May 10, 2014 2:57:11 AM UTC-5, jhgumbrell wrote: >> >> Just to be clear...it happens if I'm doing a tight slow pour. Machine HSS >> only just started to react like this > > -- > You received this message because you are subscribed to the Google Groups > "Brewtus" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected] <javascript:>. > To post to this group, send email to [email protected] <javascript:> > . > Visit this group at http://groups.google.com/group/brewtus. > For more options, visit https://groups.google.com/d/optout. > > > -- You received this message because you are subscribed to the Google Groups "Brewtus" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/brewtus. For more options, visit https://groups.google.com/d/optout.
