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08-10-2014, 11:58 AM
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#1
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Senior Member
Join Date: Nov 2011
Location: Somewhere
Posts: 125
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A black tank mystery
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MSGT, USAF (Ret) 1965 - 1991
2001 Damon Intruder 362
Always under going renovations
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08-10-2014, 12:07 PM
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#2
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Registered User
Monaco Owners Club
Join Date: Oct 2009
Location: Varies Depending on The Weather
Posts: 8,517
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You answered the reason why you are having so many problems in your post!
"we discovered the thing was sadly mistreated."
Purchase a jar of Happy Campers Organic Extreme Tank Cleaner.
You may need to clean it multiple times before all of the "misuse" has been removed.
Dr4Film ----- Richard
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08-10-2014, 12:10 PM
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#3
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Registered User
Damon Owners Club Workhorse Chassis Owner
Join Date: May 2008
Location: N. Palm Springs CA (in winter)
Posts: 2,420
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A flex inspection camera wand make it easy to look in those difficult areas. The only tanks I know that may have a coating in them are metal fuel tanks to prevent rust and leaks.
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08-10-2014, 12:14 PM
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#4
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Senior Member
Join Date: Jun 2014
Posts: 356
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+1 on 5 Star Happy Camper products, good stuff!
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2015 A.C.E. 27.1
American Car Dolly
2001 Ram 1500 / 2012 Kia Soul....Go Hamsters!
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08-10-2014, 12:17 PM
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#5
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Senior Member
Newmar Owners Club Freightliner Owners Club
Join Date: May 2012
Location: Today? Clayton, North Carolina
Posts: 5,093
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It seems pretty clear you're dealing with some kind of coating that formed on the inside walls of the tank over the years. I've never had an RV that I used intermittently (other than a little popup), so I've never had to deal with the old seasonal storage thing regarding all the systems. Based on my reading, I think having black and gray tanks go through seasonal dryouts without proper and careful cleaning and rinsing is probably one of the most difficult and critical problems facing folks with large RVs.
I don't know the answer-- have you tried the ice cube scrub?
I guess if you keep flushing, at some point all the coating will be gone. Good Luck!
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John and Diane (RIP Lincoln, 21 FEB 22) RVM103 NHSO
Fulltimers since June, 2012
2002 Dutch Star 40, Freightliner, Cat 3126, 2004 Element
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08-10-2014, 12:18 PM
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#6
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Senior Member
Join Date: Apr 2013
Location: Missouri City, TX
Posts: 1,309
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Quote:
Originally Posted by Doggy Daddy
A flex inspection camera wand make it easy to look in those difficult areas. The only tanks I know that may have a coating in them are metal fuel tanks to prevent rust and leaks.
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Harbor Freight has the inspection camera Inspection Camera - Save on this Digital Inspection Camera and with a coupon not a bad price. They work real well.
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Don
2003 Forest River Cardinal Platinum 37' 5th Wheel
1976 31' Airstream
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08-10-2014, 12:48 PM
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#7
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Senior Member/RVM #90
Monaco Owners Club
Join Date: Nov 2002
Location: Columbus, MS
Posts: 54,768
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Quote:
Originally Posted by Dr4Film
You answered the reason why you are having so many problems in your post!
"we discovered the thing was sadly mistreated."
Purchase a jar of Happy Campers Organic Extreme Tank Cleaner.
You may need to clean it multiple times before all of the "misuse" has been removed.
Dr4Film ----- Richard
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X2
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Joe & Annette
Sometimes I sits and thinks, sometimes I just sits.....
2002 Monaco Windsor 40PBT, 2013 Honda CRV AWD
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08-10-2014, 12:54 PM
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#8
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Community Moderator
Newmar Owners Club
Join Date: Feb 2011
Location: Point Pleasant Beach, NJ
Posts: 31,512
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Quote:
Originally Posted by Dr4Film
You answered the reason why you are having so many problems in your post!
"we discovered the thing was sadly mistreated."
Purchase a jar of Happy Campers Organic Extreme Tank Cleaner.
You may need to clean it multiple times before all of the "misuse" has been removed.
Dr4Film ----- Richard
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X3 That stuff works great!!
__________________
Tony & Ruth........... FMCA#F416727
2016 London Aire 4519, Freightliner chassis, Cummins ISX, 2018 Jeep Wrangler Unlimited, Blue Ox Avail with AF1. TST 507 TPMS
No amount of money can buy you an extra second of time.
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08-10-2014, 01:17 PM
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#9
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Senior Member
Join Date: Feb 2012
Location: Aiken,SC
Posts: 1,025
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I had the same thing happen to me on our last coach,but I don't think it was as bad as yours. I had some chunks that seemed like some kind of tank lining,but it is actually dried poo poo and toilet paper from misuse.
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Good Sam Life Members
Served in U.S.A.F.
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08-10-2014, 01:29 PM
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#10
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Senior Member
Join Date: May 2009
Location: Maryville, TN (Homebase)
Posts: 520
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I have a sewer elbow with a hose connection that you can use to clear a clog in the outlet of your tanks like this http://www.amazon.com/Valterra-F02-4...6ZRPAB0EBMJ75M
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2002 Fleetwood Revolution 38B
2006 Honda CR-V Air Force One
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08-10-2014, 04:22 PM
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#11
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Senior Member
Join Date: Nov 2011
Location: Somewhere
Posts: 125
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JFXG, did the ice scrub a couple of times. I think it may have loosened the stuff im seeing.
Doggy Daddy, not sure if the camera would help. I know whats blocking the drain and i kn i w its coming from the inside tank wall as i get some with curved edges.
Waroland, wish i could use that elbiw but the distance from the dump opening to the opening in the floor of the utilities compartment prevent its use.
Thanks macantic, glad to see im not going crazy alone.
Dr4Film, I will try to find the product you suggested. suggested. Hope it works.
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MSGT, USAF (Ret) 1965 - 1991
2001 Damon Intruder 362
Always under going renovations
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08-10-2014, 09:35 PM
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#12
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Senior Member
Fleetwood Owners Club Ford Super Duty Owner
Join Date: Oct 2013
Location: northern IL
Posts: 2,557
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I would try to use the product suggested or something similar that actually eats the organic material. what I would do is use enough product to be at an appropriate strength for filling the tank completely with fresh water and the chemical. I would then use the resort facilities for a solid week and let that stuff sit in there the whole time. Hopefully a week is enough time for it to eat the matter off the sides of the tank. Also filling it up to the brim will allow it to cover the entire inside of the tank.
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2014 Fleetwood Bounder 35k
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08-10-2014, 10:23 PM
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#13
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Senior Member
Join Date: Sep 2012
Location: Tasmania now, USA/Canada/Alaska in April
Posts: 2,473
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Some of it could be urine scale or lime scale or similar.
You could also try starting with the tank empty and adding a few gallons of cheap white vinegar and then topping up with water and leaving for a couple of days.
There are commercial products as well, but they all seem to be some sort of acid. A dilute (say 5%) solution of Hydrochloric acid (from the building materials store) would also do it
__________________
Tony Lee - International Grey Nomad. Picasa Album - Travel Map
RVs. USA - Airstream Cutter; in Australia - MC8 40' DIY Coach conversion & OKA 4x4 MH; in Germany - Hobby Class C; in S America - F350 with 2500 10.6 Bigfoot camper
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08-11-2014, 12:56 AM
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#14
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Senior Member
Newmar Owners Club
Join Date: Mar 2005
Location: Abbotsford, BC
Posts: 532
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Friends of ours had a similar problem on their new-to-them boat. Their black tank was completely clogged up with sludge because the boat had been sitting, unused, for quite a long time... and no one had thought to empty the tank.
They bought a marine product called NoFlex Waste Digestor ( Noflex Digestor) and the stuff was like a miracle! Cleared out all of the sludge and build up in their tank and got rid of the nasty smell in their hold.
Not sure if it would work for you... but they do say the product is safe on plastics, so it shouldn't harm the tank. I'd fill the tank up with water and pour a bunch of the NoFlex down the toilet and let it sit for a long time and do its thing. Should clear out ALL of the "gunk" left in your tank and leave it like brand new!
Best of luck to you!
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John
2005 Newmar MADP
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