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Old 05-30-2013, 08:22 AM   #1
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Dometic Toilet Flush Trap Failure

The "trap door" in my toilet seems to no longer be connected to the pedal. It can be moved manually with no problem, and the pedal turns on water just fine. Anyone already know how to fix this?
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Old 05-30-2013, 08:38 AM   #2
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is this a model 310 toilet?
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Old 05-30-2013, 08:43 AM   #3
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What model toilet?

There is either a wire, cable, or direct connection that connects the flush arm/lever to the flush valve and trap door. depending on model.

http://www.dometic.com/enus/Americas...tdataid=106247

http://www.dometic.com/5681e2be-9661...e49a220e.fodoc
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Old 05-30-2013, 10:00 AM   #4
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Thanks! Yes, it's a model 310. I'm having a hard time understanding what I'm
looking at. Here's two pictures.
Click image for larger version

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This is where the pedal inserts. You're looking at the end if the ball-valve arm. What are the two white things? (Note that there has never been a "hard connection" between the pedal and the valve. I had thought there was a spring connecting it.

This is the inside of the pedal that plugs in to the previous picture. The spring is just the pedal return I think.
Click image for larger version

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I guess my next step is to try and remove the valve. I hope I don't drop it into the tank! From what I read in my Dometic manual, it sounds like it should pull out from the top.
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Old 05-30-2013, 10:16 AM   #5
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My pedal shaft broke the first time we used it. i called Dometic for parts and they had a dealer replace the whole toilet assembly. I think it is a 310( one with the ceramic bowl)
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Old 05-30-2013, 10:28 AM   #6
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Do not remove valve
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Old 05-30-2013, 10:30 AM   #7
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The white plunger thing is the water valve. The cam rotates and presses it in releasing water to the flusher.

It looks like the center part of the mechanism (on the toilet side) is broken off.
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Old 05-30-2013, 10:34 AM   #8
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I suspect that the screw you removed that was under the cover that you pryed off was not secure. The flush control for the luush flapper is isolated completely from the water valve. The spring is the key for flush handle return and the screw is what holds the flush flapper in place.
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Old 05-30-2013, 10:41 AM   #9
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You have to hold the flapper ball fully closed (from inside the toilet) and insert the flush handle into the cavity with tension on the return spring to hold the handle up. Install the tiny screw and secure gingerly (don't over tighten).
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Old 05-30-2013, 10:44 AM   #10
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The connection between the flush handle and flapper is purely mechanical, no spring interlock. The spring in the handle is for the handle return control.
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