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Old 01-12-2017, 09:58 AM   #1
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Vacuflush toilet issues

So, I read all about this toilet on an old discussion. Still have a couple questions for all you mechanical types out there. We have a 2014 Bounder Classic 34m. Full time for two years now. Recently replaced the ball and gasket assembly due to recurrent cycling. All seemed well. Moved to our first "cold" weather location. Nightly temps range from teens to 40's, but average low to mid 30's. Now, mostly at night or early morning we are experiencing either continual cycling or recurrent cycling again. This resolves during the day as temps increase. Should we be concerned about this or is this just a temperature related issue? Also just read about altitude issues. We're at 4700 ft. Could that also be causing any of this? TIA
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Old 01-12-2017, 05:52 PM   #2
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Expansion and contraction is one element to cause issues. Are you running the furnace?
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Old 01-12-2017, 06:05 PM   #3
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You could check all of the clamps on the hoses. I have a 2 head, vacuflush system. I tightened all of the connections and it helped.

If the bowls are holding water, the next thing is the 4 duckbill valves in the vacuum generator.
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Old 01-12-2017, 06:14 PM   #4
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Vacuum switches too could be getting bad.


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Old 01-12-2017, 06:37 PM   #5
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A problem I'm having just now Is insects getting into electronics and doing damage... I'm coping but I will have to gas this house ASAP it seems.
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Old 01-13-2017, 05:32 AM   #6
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Quote:
Originally Posted by twinboat View Post
You could check all of the clamps on the hoses. I have a 2 head, vacuflush system. I tightened all of the connections and it helped.

If the bowls are holding water, the next thing is the 4 duckbill valves in the vacuum generator.

twinboat are the vacuflush units on MH similar to the one ones they put in larger boats? Hose clamps, vacuum pump, duckbills, ball seals, vacuum switches, oh my! I finally replaced vacuum switches they were the culprit and are very sensitive.


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Old 01-13-2017, 06:01 AM   #7
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twinboat are the vacuflush units on MH similar to the one ones they put in larger boats? Hose clamps, vacuum pump, duckbills, ball seals, vacuum switches, oh my! I finally replaced vacuum switches they were the culprit and are very sensitive.


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Yes they are. The older systems used separate tanks and a free standing pump, with more hoses, clamps and duckbills.

I just replaced 2 vacuum $witchs.
3 years ago I added shims the the switch part of the old ones and got some more time out of them.

My system was built in 85 and I am slowly replacing every part.
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Old 01-13-2017, 10:16 AM   #8
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Quote:
Originally Posted by twinboat View Post
Yes they are. The older systems used separate tanks and a free standing pump, with more hoses, clamps and duckbills.

I just replaced 2 vacuum $witchs.
3 years ago I added shims the the switch part of the old ones and got some more time out of them.

My system was built in 85 and I am slowly replacing every part.

Yep been there.


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Old 01-13-2017, 10:33 AM   #9
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Expansion and contraction is one element to cause issues. Are you running the furnace?
RV Wizard. We run our furnace on a limited basis. We're using drop lights in the water bay and water pump bay to maintain temps in the 40's overnight. Would running the furnace limit the expansion/contraction?
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Old 01-14-2017, 04:46 AM   #10
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RV Wizard. We run our furnace on a limited basis. We're using drop lights in the water bay and water pump bay to maintain temps in the 40's overnight. Would running the furnace limit the expansion/contraction?
Maintaining a close same temperature will greatly reduce expansion and contraction. The above statement concerning the vacuum switches is very accurate also.
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