Posted Fri Jan 31, 2014, 6:58pm Subject: Re: La Pavoni professional Ghost leak
Perhaps you can post a picture of the bottom with something pointing to the suspected leak spot? I'm not picturing the leak location very well, but it sounds like the actual element to base junction is leaking. Or worse perhaps the element itself is leaking?
decoherent Senior Member Joined: 4 Jan 2014 Posts: 4 Location: London Expertise: I love coffee
Posted Thu Feb 27, 2014, 6:18pm Subject: Re: La Pavoni professional Ghost leak
Hello, Apologies for the delay in returning to this thead. It has been a long research to find good anti rust product in uk as naval jelly is not sold overe here and posphoric acid is not available in jelly suspension. Lickily I found a great non toxit rust remover (Deox) and brought back the inside of the base to almost new After this I sprayed the inside with high zinc content paint. It is grey and it took 4 days to dry completely. Fact is that this paint seems easy to remove and scratch and it doesn't repel water. Should I finish with a protective paint? I've some stove into rust painting in chrome. Also I wander if the zinc paint will bear the temperature. If this things works my Millennium won't see rust at least for the rest of my life. Thanks. Antonio
thaliadenmark Senior Member Joined: 22 Mar 2008 Posts: 6 Location: Denmark Expertise: I love coffee
Espresso: La Pavoni Europiccola and... Grinder: Braun
Posted Mon Jun 16, 2014, 10:12am Subject: Re: La Pavoni professional Ghost leak
Well, it's been a while, but that pesky leak from the start of the thread is back. And this time with a vengeance. As the machine is in a summer home and thus dormant for months on end, I am suspecting this particular unit - possibly because of corrosion damage or some other hardly measurable defect, only works when the base seal is fresh, and as the seal dries out and shrinks ever so slightly in the winter, begins to leak again when cold. As ridiculous as it seems to have to replace a major seal every spring, this may be necessary. Unless...has anyone ever tried using a slightly beefier o-ring for any of these seals? I don't know if they're even made, but it seems to be a good solution in other plumbing situations... About ready to ship the whole boiler, though.
stefano65 Senior Member Joined: 30 Oct 2004 Posts: 1,403 Location: Eugene OR Expertise: Professional
Espresso: Vibiemme,Elektra, Grinder: Vario,Macap, Vac Pot: not Drip: not Roaster: not
Posted Mon Jun 16, 2014, 2:11pm Subject: Re: La Pavoni professional Ghost leak
well we found just recently an o-ring that is "chubbier" from the original p-7ss we sell (original Pavoni one), I tried couple of times in my shop while I had machines in for repairs, and worked fine, we sent couple out to customers with same issues and so far so good, what we don't have is a long term results yet, if you are interested in trying one please contact me directly from our web page since the item is not yet in the item list
and please do not take this as a sell pitch, thanks
Posted Mon Jun 16, 2014, 3:40pm Subject: Re: La Pavoni professional Ghost leak
I didn't have the issue you are dealing with. Sounds like Stefano might have a solution for your machine, but if you want to make a seal with teflon/PTFE here's what I did.
Look on eBay for 1.5mm teflon sheets. I picked up mine from Estonia I think it was... Anyway, make a paper pattern that fits inside the lip of the base heating element and extends far enough inside it will make a good seal. Make sure your paper pattern fits perfectly just under the lip and you'll get a good seal going forward.
I traced the pattern onto the teflon sheet and cut it out with a razor. Been using the same seal for over a year while opening up the machine several times. It's reusable, works fine, haven't had any problems with leaking. Since it is thicker than the standard paper filters you might get a better form fit this way.
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