Black tank flushing? |
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MysticLily180
Newbie Joined: 08 May 2016 Location: AZ Online Status: Offline Posts: 21 |
Topic: Black tank flushing? Posted: 07 Jun 2016 at 1:49pm |
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Yes, the guys at Camping World told me the same thing about 2/3 - 3/4 full (and it confirms that in the owners manual as well:)
This may be a dumb question, but when you say you fill it all the way... do you mean pouring water in via the toilet bowl, or via the black tank flush portal? |
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Mystic Lily
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techntrek
Admin Group - pHp Joined: 29 Jul 2009 Location: MD Online Status: Offline Posts: 9062 |
Posted: 07 Jun 2016 at 8:25pm | |
Whichever is faster and/or easier.
No such thing as a dumb question here!
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Doug ~ '10 171 (2009-2015) ~ 2008 Salem ~ Pod instruction manual
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MysticLily180
Newbie Joined: 08 May 2016 Location: AZ Online Status: Offline Posts: 21 |
Posted: 08 Jun 2016 at 1:27am | |
thanks, Techntrek!
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Mystic Lily
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johnbryanpeters
Newbie Joined: 13 Aug 2016 Location: Vermont Online Status: Offline Posts: 8 |
Posted: 04 Oct 2016 at 11:58am | |
Just tried to flush the tank on my 2013 (2014?) RP-171; it had seemed to work before, this time pressure built up and the valve sprayed water. It seems I will have to cut a hole in the wall either in the sleeping area or behind the toilet to get at the valve. Grrr... Notes: 1) The valve is both a check valve and a vacuum break. Its primary purpose is to prevent sewage from making its way back into the hose you're using to flush the tank. 2) As I spend more time using and maintaining this trailer, the evidence of sloppy workmanship is astounding.
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johnbryanpeters
Newbie Joined: 13 Aug 2016 Location: Vermont Online Status: Offline Posts: 8 |
Posted: 05 Oct 2016 at 1:54pm | |
Diagnosis of flush issue:
Had to cut into bedroom wall under 125 VAC electrical outlet (!) to access valve. It was a B&B model 571 vacuum breaker, made of plastic, which had failed. Research on web tells me that these fail frequently.
Suggestions for replacement are Watts LF288A or Cash Acme V-101, reference http://www.jaycoowners.com/forums/f7/b-and-b-model-571-vacuum-breaker-flood-26776.html. I have ordered the V-101, and plan to relocate it when I install it. |
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JandL
Senior Member Joined: 29 Mar 2014 Location: California Online Status: Offline Posts: 364 |
Posted: 05 Oct 2016 at 5:19pm | |
My vacuum breaker/check valve was leaking on my 177. It turned out to be a loose fitting so I just tightened it by hand and the leak stopped. I just pulled the wall back enough to get to the valve. The corner molding and 1/8" paneling are held in place with staples. It is very easy to remove the paneling. The other thing I found was the sprayer mounted in the back water tank was clogged up and so there was a lot of back pressure which contributed to the leak. The back water flush valve is held in place with 3 screws. I took it out and unscrewed the fitting from the hose and that's when I saw all the buildup inside it. Took a small brush to clean out the gunk. The small holes that water squirts out of had burrs and had never been cleaned up. I used a sharp exacto knife and a welding torch tip cleaner to remove the burrs. Everything is working as it should
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JandL
2013 Honda Ridgeline 2012 177 2 Paynes in a Pod |
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Happy Tripping
Senior Member Joined: 27 May 2014 Online Status: Offline Posts: 473 |
Posted: 05 Oct 2016 at 6:14pm | |
Pardon the question from a non-plumber - How do you intend to join the new metal valve to the current non-metal tubing?
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johnbryanpeters
Newbie Joined: 13 Aug 2016 Location: Vermont Online Status: Offline Posts: 8 |
Posted: 05 Oct 2016 at 6:23pm | |
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JandL
Senior Member Joined: 29 Mar 2014 Location: California Online Status: Offline Posts: 364 |
Posted: 05 Oct 2016 at 9:57pm | |
johnbryanpeters referenced in his post
Suggestions for replacement are Watts LF288A or Cash Acme V-101 Keep in mind that these are Vacuum Breakers only they do have a built in check valve. A check would have to added to make them the same as the B&B model 571 vacuum breaker/check valve. |
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JandL
2013 Honda Ridgeline 2012 177 2 Paynes in a Pod |
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JandL
Senior Member Joined: 29 Mar 2014 Location: California Online Status: Offline Posts: 364 |
Posted: 06 Oct 2016 at 11:52am | |
I got this PDF from “tiffinRVnetwork” and it is a very good explanation of how the vacuum breaker/check valve works in the black water flush system.
Black_tank_flush.pdf |
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JandL
2013 Honda Ridgeline 2012 177 2 Paynes in a Pod |
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