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Old 17-01-2009, 19:54   #16
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DON'T SERVE CORN ON THE COB IN QUANTITY
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Old 18-01-2009, 13:36   #17
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It's just a diaphram pump. Same type as is used in many overboard direct discharge. It has a vacuum accumalator and the ball valve at the head. The vacuum is developed by running the diaphram pump with the ball valve closed. It also has check valves. When you push down on the pedal you are opening a ball valve. The pump then pumps the waste to the holding tank and recharges the system. It is not complicated.
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Old 20-01-2009, 22:34   #18
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My 2 Sealand systems are 10 years old and are still running on the original parts.
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Old 26-01-2009, 09:46   #19
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Have a 30 year old Sealand in the sailboat and only the vacuum pump was replaced at about 8 years. It has worked flawlessly since, even with raising 2 kids.

I installed a 2nd sealand in our 1978 35' Bertram 4 years ago and it has functioned perfectly. The 2nd unit has the integrated pumb and vacuum generator. It is very low noise.

The primary benefits are push lever flush and minimal water consumption allowing the holding tank to last 2X longer before getting pumped out.
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Old 26-01-2009, 09:53   #20
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We have a Lavac on Jubilee. It is great, and the manual pump used is the same Henderson used as the manual cockpit bilge pump. In an emergency, you could disconnect the intake hose from the seacock (after closing it) and use it to pump out the boat as well. It is the original unit from 1985.

It has worked very well. We do have a no TP down the chute policy - there are little black doggie poo bags for that. It could take the TP, I just don't want it there!!!
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Old 27-04-2009, 10:00   #21
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Quote:
Originally Posted by SilentOption View Post
After some research including cost comparison I have decided to go with Sealands Vacuum flush in the aft cabin for a trial period and if it works well I'll replace the forward head with the same thing. Fresh water use is a non issue on my boat and the power draw seems miniscule.

Thanks for the input.

SilentOption: Can you tell us how things went. What have you decided?

Thanks!
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Old 13-05-2009, 15:39   #22
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10 years so far with Vacuflush. Would get the same again.
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