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post #11 of 19 Old 01-29-2007
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Looks like they are on clearance at Defender:

http://www.defender.com/product2.jsp?path=-1|51|806|315132&id=87719
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post #12 of 19 Old 01-29-2007
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Quote:
Originally Posted by TrueBlue
We have two Blake/Lavac heads onboard and as hellosailor implied, I would never swap them for anything else.

They are simple in operation, efficient and maintenance free. The toilets however are British made, so if you ever do need parts - bend over & spread them.
TB,
Are your Lavacs connected to holding tank ? If yes do you have any problems with the amount of water required for each flush. We have one on Raven and am getting ready to fit holding tank but keep being told that Lavacs and HTs are not compatible unless the HT is huge. I'd appreciate your comments.
Regards
TD

ps - electric or manual ?

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Last edited by tdw; 01-29-2007 at 06:33 PM.
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post #13 of 19 Old 01-29-2007
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I'd like to see what True Blue says about the holding tank issue but in general the Lavac is a ripper. Simple to operate,relatively easy to service, no major problems with odour. Only downside I have heard about is in regard to volume of water used per flush and the effect this has on holding tank capacity. This is a manual pump model , I'm not up on the electric version.

TD

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post #14 of 19 Old 01-29-2007
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The Lavac Zenith is the one on clearance and is the original model - supposed to be a bit sturdier than the Lavac Popular (current model).

s/v "Pelican" Passport 40 #076- Finished Cruising - for the moment -
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post #15 of 19 Old 01-29-2007
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Quote:
Originally Posted by tdw
I'd like to see what True Blue says about the holding tank issue but in general the Lavac is a ripper. Simple to operate,relatively easy to service, no major problems with odour. Only downside I have heard about is in regard to volume of water used per flush and the effect this has on holding tank capacity. This is a manual pump model , I'm not up on the electric version.

TD
TDW-

It is my understanding that most users find the Lavacs head uses less water than a conventional head, not more...

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post #16 of 19 Old 01-29-2007
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TD,
There is a vent plug located at the highest point on your vent loop hose, which we have regulated to obtain a very minimal flush water amount. Typically with our manual pump, 10-12 pumps are required for total evacuation of the bowl. I would estimate about 1-2 liters max for each use - depending upon . . . the amount and consistency of solid matter.

As you know, having used a Lavac, an important component of the system is an air-tight bowl during flushing. Good gaskets on the seat cover and lid ensures a proper vacuum is formed, essential to flushing.

We have The original version, Zenith models with Henderson pumps - very heavy duty equipment, compared to the lighter duty "Popular" series. There is a direct discharge only with our aft head and a 24 gal holding tank for the forward head. A Y-valve diverter allows direct discharge, holding tank, or deck pump-out with this head. Obviously, the toilet will not flush if the tank is full - but we have rarely experienced a problem. If staying for long terms in protected harbors and anchorages, we call for the pump-out boat (called the PeewE-2 in Edgartown), or motor up to a pump-out dock.

If you haven't done so, download the pdf Users Manual at this site:

http://www.blakes-lavac-taylors.co.uk/prod03.htm

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post #17 of 19 Old 01-29-2007
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And I'm still trying to figure out how to fit the pump into my Passport 40... damn marble countertop - if it wasn't a "trademark" of Passport's it would be gone by now... And above the head is a medicine cabinet with mirror. I'm gonna get that Lavac in there somehow!!!!

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post #18 of 19 Old 01-30-2007
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Quote:
Originally Posted by SVDistantStar
Has anyone on here used a Lavac head? Im thinking of one of these when it comes time to replace the aged jabsco in my boat. Im going to redo the holding tank/plumbing on the whole system.
The boat we just purchased came with one. They are expensive, and so are the spares, but they are mechanically rugged, very hard to clog and stingy with the water once you know how to work them. They are quite high-quality, and for some reason women seem to like them a great deal, which may or may not be a factor. Finally, you can use them with a diverter to pump the bilge or pump the holding tank, which is handy for distance cruising.

From what I know (and I'm not "head" of the class...), the best marine heads are Lavac, W-C, and Raritan PHIII. Each has its strengths.
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post #19 of 19 Old 01-30-2007
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Quote:
Originally Posted by tdw
TB,
ps - electric or manual ?
We have a 40 gallon holding tank, and unless my five-year-old, who is fascinated by the Henderson pump, is "over flushing", they tend to use less water, I find, than a standard Jabsco/Par/Groco.

Because I feel electrics have little place beside several litres of standing water in a frequently humid head, I would say go for the manual. As has been previously stated, relatively simple plumbing can turn your head into an auxiliary manual bilge or sump pump.

Of course, I have pressure hot and cold water, and I'm getting Whale foot pumps for offshore, so my Luddite/amp conserving instincts may not suit your installation...
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