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4788 guest head 09 Jul 2017 16:01 #1

  • gjkl1776
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  • kent@kentmar.com
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Has anyone come up with a easy way to replace duck bills on the vacuflush toilet other than take half of the room apart?

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2001 4788
Knott again

4788 guest head 10 Jul 2017 00:44 #2

  • Carlo
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I have had to do this a few times and I find the easiest way is to remove the entire toilet and work on it on a bench. It is relatively easy to remove the whole thing. Shut off the water intake valve & pump, turn off the breakers for the toilet and supply, remove the bolts fastening it to the floor, Loosen the clamps around both in and out hoses, and disconnect the two wires to the motors. That's it. Takes 10 minutes. It helps to put some sort of a plug in the in and out hoses to keep the area a little dryer. You will be cleaning up water when you are done!

Cheers

Carlo

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4788 guest head 10 Jul 2017 01:03 #3

  • higgins_jr
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Carlo, I presume you mean removal of the whole pump vs the bowl etc. I agree, removal of the pump is the best way, and I guess a fresh water unit is different from a salt water unit, but I've found no need to disconnect water lines if you're not removing the bowl. However getting it out of the compartment behind the guest head is cumbersome at best. The pump itself will come out thru the little door with the removal of the door frame surround.

Take a read of the attach post I wrote a while back. It'll help if it's a fresh water unit. I haven't worked on a salt water unit, so it may be somewhat different.

baylinerownersclub.org/index.php/forum/t...855-vacuflush-access

Have fun! Cheers

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John H
Brisbane QLD Aust
"Harbor-nating"

2000 - 4788/Cummins 370's
Last Edit: by higgins_jr.

4788 guest head 10 Jul 2017 03:28 #4

  • Average Joe
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The best access to work on the pump is through the cabinet under the sink (yes you read that right...). Take out the back, floor and sides (about 20 screws) and you can crawl in and actually sit in there and work on it. I have done this twice. It's far easier than trying to work on it with one hand by feel through that little door under stairs. A more permanent solution is to 1) cut in an access opening through the fiberglass directly behind toilet and install one of those hatch doors, OR 2) raise the platform upon which the vacuflush pump rests about 8" or so, THEN modify the stairway to the pilot house so that the bottom two treads and risers are removable. That will give good access to work on the pump with both hands and eyes. I chose the second option. Good luck!

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Last Edit: by Average Joe.

4788 guest head 13 Jul 2017 22:39 #5

  • Carlo
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Hi Guys
I am sorry if I confused someone, My 4788 has electric toilets and I now realize that you guys are talking about a vacuum flush system.
Cheers

Carlo

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4788 guest head vacuflush access 16 Aug 2017 18:48 #6

  • JMistress
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My solution to working on the guest head vacuflush was to install a access door in the head. A T-H Marine Sure Seal 11inch x 15 inch access hatch fit perfectly and the "sand shell" color was a great match. Info on the hatch, cutout, etc. can be found at: thmarine.com/sure-seal-hatch-locking . I would post pictures, but I still don't know how...
The following user(s) said Thank You: Woodsea

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