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07-21-2016, 11:26 AM
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#1
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Member
Join Date: Nov 2015
Posts: 55
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Black tank flush questions?
Got to use my black tank flush for the first time the other day and the first time I ran water through it, I could hear it swirling around inside the tank. I hooked it back up a second without a pressure reducer and could not hear it spraying the second time.
Question 1
Should I always hear water spraying inside the black tank when it's mostly empty?
Question 2
Should I use a pressure reducer on the black tank flush as well?
I hope I didn't mess up my tank flush by using too much water pressure.
Thanks for your help
Bob
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2015 Dodge RAM 1500 Laramie w/ 4 Corner Air Suspension, 3.92 gears, 32 gal fuel tank, integrated brake controller
2016 Coachman Freedom Express Liberty Edition 320 BHDS
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07-21-2016, 05:17 PM
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#2
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Senior Member
Join Date: Jan 2014
Posts: 691
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Well I don't think you can do much damage without a pressure regulator on.These newer rvs have the same type plumbing that your house has.I haven't seen too many camp grounds that have real high pressure. I don't run a regulator at all.
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2011 Ram Mega Cab 3500 Larimie dually
2016 Chaparral 370FL
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07-21-2016, 05:27 PM
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#3
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Insert witty title here
Join Date: Apr 2016
Location: About 30 miles west of Beantown.
Posts: 4,023
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I use a pressure regulator for my drinking water but not my blank tank rinse. I want the extra pressure to help rinse away all the goodies in there.
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2021 Transcend Xplor 247BH
Husky WDH with Sway Control
2021 Chevy Silverado 2500HD LT 6.6L V8 Duramax
Forever in my memory. Forever in my heart.
Laurie J. Wood 3/22/67 - 8/23/19
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07-21-2016, 06:43 PM
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#4
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Member
Join Date: Nov 2015
Posts: 55
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That was my thought as well. Do you always hear yours when it's spraying? I could the first time but not the second and I worried I used too much pressure in the flush system.
__________________
2015 Dodge RAM 1500 Laramie w/ 4 Corner Air Suspension, 3.92 gears, 32 gal fuel tank, integrated brake controller
2016 Coachman Freedom Express Liberty Edition 320 BHDS
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07-21-2016, 06:50 PM
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#5
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Insert witty title here
Join Date: Apr 2016
Location: About 30 miles west of Beantown.
Posts: 4,023
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Quote:
Originally Posted by rocketman1083
That was my thought as well. Do you always hear yours when it's spraying? I could the first time but not the second and I worried I used too much pressure in the flush system.
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No I don't hear it but my hearing is poor so I can't judge.
Usually it's the cheap plumbing fixtures in an RV that are likely to fail due to excessive water pressure so unless your camper is hooked up to a pressure washer, I think you'll be fine.
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__________________
2021 Transcend Xplor 247BH
Husky WDH with Sway Control
2021 Chevy Silverado 2500HD LT 6.6L V8 Duramax
Forever in my memory. Forever in my heart.
Laurie J. Wood 3/22/67 - 8/23/19
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07-21-2016, 06:51 PM
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#6
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Insert witty title here
Join Date: Apr 2016
Location: About 30 miles west of Beantown.
Posts: 4,023
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Black tank flush questions?
..
__________________
2021 Transcend Xplor 247BH
Husky WDH with Sway Control
2021 Chevy Silverado 2500HD LT 6.6L V8 Duramax
Forever in my memory. Forever in my heart.
Laurie J. Wood 3/22/67 - 8/23/19
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07-21-2016, 07:09 PM
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#7
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Member
Join Date: Nov 2015
Posts: 55
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Thank you for the quick replies. I really appreciate it.
__________________
2015 Dodge RAM 1500 Laramie w/ 4 Corner Air Suspension, 3.92 gears, 32 gal fuel tank, integrated brake controller
2016 Coachman Freedom Express Liberty Edition 320 BHDS
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07-22-2016, 01:51 PM
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#8
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Member
Join Date: Feb 2013
Posts: 83
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I don't use a regulator on the black tank flush since it's always open on the other end. I do hear mine when its empty but don't when its full.
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DP
2013 Tracer 240 AIR
2014 Silverado 1500
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07-22-2016, 04:32 PM
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#9
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Senior Member
Join Date: Oct 2014
Location: Full timer,,,at Lake Georgetown in central Texas for the winter.
Posts: 442
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I use a pressure regulator on the whole rv if the park pressure is questionable.....65 or 70 # is as much as I'll push the envelope on that one. I've never used a pressure regulator on the flusher since that part of the system isn't under pressure because it's blowing on through to the flusher sprayer in the tank. When it gets filled to a certain point you'll stop hearing the sprayer,,,,,,DON'T GET SIDETRACKED. If it overflows, you might very well notice brown pookie coming down off the roof. This would not be a good time to open your toilet valve. Try it if you're REALLY curious. But you'll be SORRY!!!
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07-22-2016, 07:32 PM
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#10
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Senior Member
Join Date: Nov 2015
Posts: 840
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My wife and I use a "team" approach most of the time when we are flushing and draining our holding tanks. We start by draining the black water tank, with the tank water flushing feature hooked up and running full blast. We do not attach a pressure regulator to the flusher. We make sure that the flusher is working properly by going into the trailer and opening the toilet drain slightly to make sure we hear the flushing water spraying inside the tank. This procedure is how we found out that there was a problem with a previous trailer when the back-flow/check valve on the flushing circuit had failed. No flushing water was getting into the black water tank. Our dealer fixed the problem at no cost less than a month after our 2-year warranty expired!!
To confirm that flushing water is reaching the spraying fixture in your black water tank, I would recommend this kind of team effort.
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07-25-2016, 09:30 AM
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#11
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Senior Member
Join Date: Jan 2016
Location: Benbrook, Tx
Posts: 508
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No regulator when I flush. Usually empty tank. Turn on flush for while till kinda clear. Close valve letting more water build up. Open valve while flush still running. Run till water kinda clear. Close valve letting water build up again. Open valve. Continue till water runs clear. This is at full hookup site. Would never take this kinda time at a dump station.
And I am able to hear the water spraying in on mine.
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