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09-01-2019, 08:12 AM
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#1
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Member
Join Date: May 2012
Posts: 97
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Vacuum flush question
I know there have been a lot of posts on this system, but I didn't find anything specific to my problem. Any advice would be appreciated.
When I step on the flush pedal of either toilet, the pump comes on, but there is no vacuum sucking and nothing goes down. I get a red light and pumping noise. The red light does not go out. Eventually, I have to cut off the system.
I have waited several hours and tried it again. No change.
In the past few months, this would happen occasionally. I would cut off the system and come back in a few hours and everything would be fine.
We use single ply paper and flush for 3-5 seconds.
__________________
Mike Stoneham
2012 Fleetwood Bounder 35K
2012 Honda CRV
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09-01-2019, 08:14 AM
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#2
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Member
Join Date: May 2012
Posts: 97
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Would I hurt anything if I tried a plunger?
__________________
Mike Stoneham
2012 Fleetwood Bounder 35K
2012 Honda CRV
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09-01-2019, 09:17 AM
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#3
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Senior Member
Join Date: Jul 2014
Posts: 35,413
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You can try a plunger, won't hurt. Do it with the pump running.
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09-01-2019, 01:30 PM
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#4
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Senior Member
Ford Super Duty Owner
Join Date: Mar 2009
Location: Oregon
Posts: 2,754
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__________________
2016 Bounder 34T Anniversary Edition
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09-02-2019, 06:51 AM
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#5
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Member
Join Date: May 2012
Posts: 97
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Stopped at a hardware store and bought a small plunger. Two or three plunges with the pump running, everything good now.
Thanks for the response and link.
__________________
Mike Stoneham
2012 Fleetwood Bounder 35K
2012 Honda CRV
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09-05-2019, 02:59 AM
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#6
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Senior Member
Join Date: Jul 2019
Posts: 561
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Interesting how elevation affects number of “ka-chunks” the pump takes.
At sea level it is about 60, but at 8000 ft it was closer to 160.
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09-05-2019, 08:31 AM
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#7
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Senior Member
Join Date: Apr 2015
Location: Green Valley, AZ
Posts: 955
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Really? Elevation caused me all of that stress?
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09-05-2019, 08:47 AM
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#8
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Senior Member
Join Date: May 2012
Posts: 153
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Quote:
Originally Posted by MrsChilerick
Really? Elevation caused me all of that stress?
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Found that if we are above 5000 feet it never stops. We just let it run for a few minutes then shut it off. Then turn it back on before we need to flush again.
__________________
2017 FW Storm 32A - CHF (TeJay Plates), Roadmaster RSSA, Flow-Rite, Sumos
2020 Ford Ranger Toad- Blue Ox Baseplate, Aladdin Tow Bar, Blue Ox Patriot Brake
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09-05-2019, 07:14 PM
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#9
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Senior Member
Join Date: Apr 2015
Location: Green Valley, AZ
Posts: 955
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Huh, interesting. We’ve spent most of our summer between 6200-7500ft. At the highest it ran and ran for what seemed like ever. I even timed it once at almost 3 minutes. The one time it went longer I went out and banged on the pump and it stopped. I thought it might be the Happy Camper, so I stopped using it, did a thorough black tank flush and it went back to around long but stopping. Now we’re at the beach and it’s back to a count of about 36. We head to Lake Tahoe on Sunday. 6200ft. I’ll have to see if the cycle hets long again. We ran into someone in Holbrook that turns theirs off all of the time too.
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09-09-2019, 01:46 PM
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#10
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Senior Member
Join Date: Apr 2015
Location: Green Valley, AZ
Posts: 955
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Ok, here in Lake Tahoe, the cycle is REALLY long again, but it does stop eventually
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09-10-2019, 12:19 PM
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#11
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Senior Member
Join Date: Jul 2010
Location: FT on the Road
Posts: 3,839
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Yes at elevation it will take a little longer. Shouldn't take double the time FYI. I've been in Tahoe and it took maybe another 10-15 seconds, so 45 vs 30 seconds to shut off.
Lots of "issues" with Fleetwood and the vacuflush system. The poor install quality leaves MANY points of vacuum failure. These techs that install these things are just not that smart or possible just DON'T care. I had a leak on a toilet flange that was installed incorrectly and replaced under warranty. There was also silicon on the white plumbing lines near the vacuum accumulator tank - a big no no near rubber. As one Ron White says "You can't fix stupid"
In general it works very well. Know to hold it down 2-3 seconds after EACH flush. Vacuum should hold and pump not run until flushed again even if that is a week later, it SHOULD NOT LEAK and lose vacuum at all. That simple!
You will have to replace duckbills every 2-3 years along with a bellows.
My duckbills lasted until last summer. So that was 3 years from date of purchase and 1 year of being full time in the RV. My bellows just failed 2 days ago so I had the "joy" of replacing that yesterday.
Oh, and FYI hard water destroys both these items much quicker. I have a water softener and generally have nice soft water which probably lengthened the life of both those items.
Next time I will do preventitve replacement of both these items before they full fail on their own. Fair warning to everyone else...
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09-11-2019, 01:04 PM
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#12
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Senior Member
Fleetwood Owners Club Ford Super Duty Owner
Join Date: Jun 2017
Location: Full-time Traveler
Posts: 150
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Quote:
Originally Posted by SavnTheWales
Interesting how elevation affects number of “ka-chunks” the pump takes.
At sea level it is about 60, but at 8000 ft it was closer to 160.
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From Durango, Colorado, elevation 6,500. I would say your duckbills are wearing out. When I rebuilt mine last winter, it was taking about 70-80 seconds to cycle. After the rebuild, it dropped to less than 45. Presently at 750' it takes 22 secs.
__________________
~Nick
Durango, Colorado
2013 Jeep Wrangler pushing a 2014 Bounder 33c
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09-12-2019, 06:30 PM
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#13
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Senior Member
Join Date: Sep 2014
Posts: 236
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Quote:
Originally Posted by computerguy
Yes at elevation it will take a little longer. Shouldn't take double the time FYI. I've been in Tahoe and it took maybe another 10-15 seconds, so 45 vs 30 seconds to shut off.
Lots of "issues" with Fleetwood and the vacuflush system. The poor install quality leaves MANY points of vacuum failure. These techs that install these things are just not that smart or possible just DON'T care. I had a leak on a toilet flange that was installed incorrectly and replaced under warranty. There was also silicon on the white plumbing lines near the vacuum accumulator tank - a big no no near rubber. As one Ron White says "You can't fix stupid"
In general it works very well. Know to hold it down 2-3 seconds after EACH flush. Vacuum should hold and pump not run until flushed again even if that is a week later, it SHOULD NOT LEAK and lose vacuum at all. That simple!
You will have to replace duckbills every 2-3 years along with a bellows.
My duckbills lasted until last summer. So that was 3 years from date of purchase and 1 year of being full time in the RV. My bellows just failed 2 days ago so I had the "joy" of replacing that yesterday.
Oh, and FYI hard water destroys both these items much quicker. I have a water softener and generally have nice soft water which probably lengthened the life of both those items.
Next time I will do preventitve replacement of both these items before they full fail on their own. Fair warning to everyone else...
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How difficult was it to replace the bellows. I’ve already replace the duckbills once
__________________
2016 Fleetwood Bounder 35K
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09-12-2019, 07:09 PM
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#14
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Senior Member
Ford Super Duty Owner
Join Date: Mar 2009
Location: Oregon
Posts: 2,754
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Quote:
Originally Posted by Ajayabb
How difficult was it to replace the bellows. I’ve already replace the duckbills once
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The worse part for me was getting the pump separated from the hoses so I could get it out so I could work on it without being shoulder deep in the compartment. Why they don't use a union and make it simple is beyond me.
I had trouble getting it closed back up finally got a couple bolts started and started turning them a turn at a time.
Somewhere at https://www.marinesan.com/VacuFlush-...stems-s/33.htm
is a video or picture diagram on how to put it back together, don't see it now, look around. I just couldn't get their method to work.
Buy the O-rings when you replace and note the placement when you take it apart.
__________________
2016 Bounder 34T Anniversary Edition
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