Easy Jabsco Head Replacement - SailNet Community

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Go Back   SailNet Community > On Board > Gear & Maintenance
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  #1  
Old 06-26-2011
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Easy Jabsco Head Replacement

I have 2 jabso heads that I want to replace. I'm looking for any experiences from someone who has done this. I don't mind spending the bucks for a good head, but I want it to be a simple unbolt/bolt replacement. Floor bolts need to be in the same place and inlet, output hoses compatible.
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Old 06-26-2011
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The floor bolts are lag bolts, so there is no "nut" underneath.

Unless you buy exactly the same head, you won't get the lag bolt locations to line up, but it's not an issue. Just fill the old ones and drill new ones.

The "best" head is a Raritan, either the PHII or PHC. The challenge is to get the head out hose to line up. A wee bit of measuring will tell you if they'll work for you.

The Raraitans have the head pump inlet on the front, so you'll need a longer inlet hose usually with a 90 degree elbow.

If what you want is your ONLY criteria, your only choice is to buy another Jabsco.
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Old 06-27-2011
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I second what Stew said. I recently replaced my old head (and everything else connected) with all new. I went with the Jabsco because it is a tried and true name. Filled in the old holes, sanded, painted, and was done. A complete new system from the toilet to the macerator. Well worth it and absolutely no smells.
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Last edited by tomperanteau; 06-27-2011 at 08:54 PM. Reason: spelling...
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Old 06-27-2011
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Or a Lavac - the most trouble free head. Lavac Marine Toilets - Popular

I replaced my Jabsco almost 2 years ago and have no regrets. I have never used a more reliable head. A bit more complicated to install but well worth it. Never plugs either.
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Old 06-27-2011
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When I replaced the old head on our former boat, I used a 3/4" thick piece of Starboard as a spacer. I used the old head to duplicate the bolt pattern for attaching the Starboard to the base, hence the old stainless lag bolts could be used. I used the new head to duplicate the new head's bolt pattern and, using that, set the appropriate sized bolts, counter sinking the heads on the bottom face of the Starboard and locking nuts on the top face. The new head was set down on these "studs" and locked in place with cut washers, lock washers and finish nuts. The thickness of the spacer made no difference to use of convenience.

FWIW...
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