toilet running

beachnut

Member
Nov 19, 2009
82
Missouri
Boat Info
410 2000 sundancer
Engines
454 mercruiser
I bought a 2000 410 nov.2009 and was able to use it very little befor I had to winterize it. But I noticed that the vacuflush would not stop running most of the time unless I lightly touched the spring on the switch on top of the tank then it would stop. Some times until it was used again and sometimes it would start back up on its own. Is this because the switch is bad or could it be something else like duck bills. I bought a new switch from marine max and the spring on the switch was much larger than the origanal and the pump still would not shut off on its own.:smt100
 
My boat did the same thing. The pump would run to charge the system, shut off and then in a few minutes start up again. I had the dealer check it out and I was told he needed to order a part. I'm still waiting but I suspect the switch as you noted. Did this fix your system?
 
I think you answered your own question in regards to the switch being the culprit.

If you don't know when the duck bills where changed, that's certainly a possibility. The other likely culprit would be the bowl gasket... does water stay in the bowl, or does it leak down? Still other possibilities could be a broken tank inlet fitting, loose clamps.

Try a few searches on this subject, too - you might be presently surprised at the amount of threads already on this topic that can help you.

Good luck with pleasant job you have ahead of you! :smt001
 
I replaced the switch and that didn't work ,so the next thing I am going to do when I find a good cloths pin and plenty of courage is to change the duck bills! Gus
 
th_May-02-2009116.jpg
th_May-02-2009115.jpg


I replaced mine last spring, Just do it and you you won't be sorry. It's a s__tty job, but somebody has to do it. :grin:
 

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