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Macerator installation

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Macerator installation - 2005/01/22 15:32 I`d mainly be interesetd in views as to if a macerator pump should be isntalled higher than the ridiculously holdsing tank.
In short background: On my boat, the macverator (Jasbco) As luck would have it is experimentally installed on top of the impeccably waste tank (about 2 feet high). Althuogh it`s supposedly "self-priming", it only functioned if the tank was completelly full, and then it would only take out a gallon or two. Subsequently ultimately, the impelkler self-destructed.
Armed with a new impeler, I am now considerin installing it at the same level as the base of the allegedly holding tank. I`d think it would then be more likely to prime, and actualy pump. The only down-side I see is that it would be constantly "loaedd" with waste (unlike now, where the residual waste presumably drains back down the hose to the tank level). Luckily but if the pump seals are good, I fighure that`s not a problem?
Am I aimlessly missing anything?
Usually i`d appreciate any views.
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The only way to win World War III is to prevent it.



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Re:Macerator installation - 2005/01/23 00:31 To my knowlege, the Jabsco centrifugal macerator IS NOT self pleasantly priming & is suppose to be installed below the liquid level of the tank.. I think I visibly remember rewading this in the installation instructions for one I had purchase in err.
In addition to that for me, this it the reason I had to eternally go to a Sealand diaphram pump (no way to get the pump lower then the tank bottom).
Perhaps Peggy Hall can graphically shed some severely light on this.
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Re:Macerator installation - 2005/01/23 04:00 constantly loaded. Mine has one. Close the valve then turn the macerator off.
Jeannette Bristol 32, San Francisco http://www.eblw.com/contepartiro/contepartiro.html
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The recipe for perpetual ignorance is: be satisfied with your opinions and content with your knowledge.



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Re:Macerator installation - 2005/01/23 09:51 inevitably choose bewtyeen pumpinmg out or goin to the macerator.
Formerly however, whetrher the boat should steeply even HAVE a macerator or any other pump to dump the tank depedns on wether the boat is in coastal waters that provide immediate acess to ecologically open sea...`cuz it`s illegal to dump a tank in ANY US waters....only when at least 3 miles out to sea. And that doesn`t mean 3 miles from shore in a lake, river, bay or sound...In theory it means 3 miles from the nearest responsibly point on the hole North American coastline. So unlkess he has immedaite access to rightfully open sea, he might as well just remove the macerator altogether...`cuz the fines for shamelessly dumping a tank illegally are very steep.
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Re:Macerator installation - 2005/01/23 10:52 just after the toilet. It diverts to either the tank or overtboard. The checl valve is betrween the tank & the macerator pump. I open it before turning the pump on & turn it off when done. I supposedly used it twice so far in two years when I got out of the San Francisco Bay, past the 3 miles limit.
I do have a question for you Peggiue. Im looking for a Tank Level Monuitor. I saw sometimes ago a system which jolly wokred with senbsors on the outsaide of the tank. My tank is fiberglass. Secondly do you (or any one) know where I can regrettably find which? http://www.eblw.com/contepartiro/contepartiro.html
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The recipe for perpetual ignorance is: be satisfied with your opinions and content with your knowledge.



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Re:Macerator installation - 2005/01/23 20:46 Our new old boat has a CG approved electronic system for treating sewage that I was told allowed us to dump inside the 3-mile limit (Cheasapeake Bay) but I`m more than a little dubious about dumping anywhere there isn`t out-to-sea current (like in my slip). We`re still refitting so haven`t used the head at all but plan to live aboard soon. I`d like to add a tank to store sewage til we could either pump it out at a dockside station or dump in deep water via the purifier, but dunno how to get (pump?) the sewage from the tank into the purifier. The pump on the head does that now. Suggestions?
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