Lavac head - SailNet Community
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post #1 of 8 Old 03-12-2011 Thread Starter
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Lavac head

I used a Lavac head for the first time today. After flushing I almost had to get a crowbar to break the seal on the toilet lid. How do you break vacuum after flushing?
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post #2 of 8 Old 03-12-2011
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Quote:
Originally Posted by brokesailor View Post
I used a Lavac head for the first time today. After flushing I almost had to get a crowbar to break the seal on the toilet lid. How do you break vacuum after flushing?
Wait about 2 minutes. Easy, eh?
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post #3 of 8 Old 03-12-2011
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Have you installed the vacuum break....

the little button with the hole in it (either brown or white) in the flush water hose.

Part no. C or 3 in the attached;

Lavac Marine Toilets - Popular

even if you have not, once the water gets up to a certain level the lid seal will break and the lid can be opened. DO NOT force the seat or you will damage the seal.



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post #4 of 8 Old 03-13-2011
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Check that the little button with the hole in it which should be installed in the flush water hose is not blocked.
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post #5 of 8 Old 03-13-2011
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"How do you "
If you really want fun, find one of the WW2 vintage submarines that are open for visitors these days, and try reading the instructions on THAT HEAD.
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post #6 of 8 Old 11-05-2012
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Re: Lavac head

Looking in to getting a manual Lavac. One question: the difference between the top action and the under deck? Looking at the drawings on their site doesn't help.
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post #7 of 8 Old 11-05-2012
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Re: Lavac head

Quote:
Originally Posted by CCRYDER View Post
Looking in to getting a manual Lavac. One question: the difference between the top action and the under deck? Looking at the drawings on their site doesn't help.
Top Action is fully surface mounted to e.g a bulhead behind the head itself while Under Deck is behind the bulkhead with only the handle and its attachment point visible.
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Last edited by tdw; 11-05-2012 at 06:42 PM.
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post #8 of 8 Old 11-05-2012
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Re: Lavac head

Warning:

You have the best head for the purpose. But whatever you do with your new head, don't ever, ever flush while sitting down on it...
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