T&T: Fwd: Sealand Vacuum System

[Larry & Liz Ross]

Ernest,

I am also in Victoria and have a vacuum tester that you could borrow  
if you wish.

Larry Ross
Out of the Blue
34' Pilothouse

Begin forwarded message:

From: rbrun360 at aol.com
Date: June 3, 2008 6:29:37 AM PDT (CA)
To: trawlers-and-trawlering at lists.samurai.com
Subject: Re: T&T: Sealand Vacuum System

"My problem is the fwd system is cycling, the aft system does not.?  
The work
I've done has been over a 7 week period so that I could assess each  
repair
on its own."

Ernest,

The proper way to isolate a vacuum leak in VacuFlush system is with a  
vacuum tester. A certified VacuFlush Dealer will have one or perhaps a  
another boater. With a system 17 years old I would suspect that you  
have either a vacuum switch?or a tank integrity issue since you  
plugged the tank end and still lost vacuum.?If during the life of the  
system someone cleaned it with household chemicals the diaphragm  
connected to the vacuum?switch may have a hole or distortion.?DO NOT  
turn the knurled knob on the vacuum switch, it is set by a machine and  
you will?probably have to buy a new vacuum switch if you can't find  
the small diaphragm carried by very few dealers. You can use shaving  
cream or foamy soap to find a vacuum leak as air is sucked into the  
tank rather than expelled. I usually take the tank out of the boat to  
bench test it unless you have easy access to the area around the tank.  
Contact me off list and I'll send you the troubleshooting manual.

Richard Brunson
Seattle
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