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06-21-2011, 03:21 PM
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#15
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Senior Member
Join Date: Mar 2011
Posts: 133
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Thanks --- I kind of thought that may be the reason, pressure didn't seem to make sense.
I'm going to start doing it that way, beats carrying a bucket to add water to the tank.
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Bill
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06-21-2011, 04:51 PM
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#16
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Moderator Emeritus
Ford Super Duty Owner
Join Date: Aug 2000
Location: Bryan, TX when not traveling.
Posts: 22,942
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Increase the level to at least 1/2 full and dump. I generally flush the black tank a couple of time a year and that is it.
Ken
__________________
Amateur Radio Operator (KE5DFR)|No Longer Full-Time! - 2023 Cougar 22MLS toted by 2022 F150, 3.5L EcoBoost Tow Max FX4 Lariat Travel with one Standard Schnauzer and one small Timneh African Gray Parrot, retired mechanical engineer
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06-21-2011, 05:03 PM
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#17
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Senior Member
Fleetwood Owners Club
Join Date: Aug 2009
Posts: 959
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You can dump anytime as long as you don't leave stuck turds in there
Dump and flush will ensure there is nothing left behind to build a pyramid on the tank floor.
The idea of dumping when 3/4 full, helps to get a full tank flush of lots of rushing water. Dumping when low and then follow-up with a water flush (Sani-Flush, etc) is ok.
__________________
Fleetwood Providence 2008 40e
Ford F-350 4x4 Diesel 6.0L 2006
Honda CR-V 2006
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06-21-2011, 06:02 PM
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#18
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RV Mutant #14
Winnebago Owners Club Texas Boomers Club Freightliner Owners Club iRV2 No Limits Club
Join Date: Aug 2008
Location: Texas
Posts: 17,184
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Every time we depart a CG I dump all tanks, and back flush the black. Only those times we may not have sewer will I not dump the tanks until the next stop.
So far, so good.
__________________
Wayne MSGT USMC (Ret) & Earlene (CinCHouse) RVM14 (ARS: KE5QG)
Lexi - Goldendoodle
2015 Winnebago Tour 42QD - 2020 Lincoln Nautilus Reserve
It is what it is, and then it is what you make of it.
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06-21-2011, 06:09 PM
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#19
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Senior Member
Monaco Owners Club
Join Date: Nov 2006
Posts: 369
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If you are parked in a resort/campground for a period of time hooked up to sewer you should leave the valve closed until you have close to a full tank then drain and flush. If you leave the valve open the solids can build up in a pile which becomes "The Pyramid of Death" Keeping the valve closed and flushing a full tank prevents this. This doesn't occur if you are weekending or on short trips because the motion of the RV tends to break everything down. So it should be drained everytime you go out. You may have heard the full tank drain in reference to being parked at a campground. I also use the Calgon, detergent method, have in the last three RVs and we get no smells from our tanks. Have gone for ten days without dumping with no problem. Before you say/think it we have big tanks.
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06-22-2011, 11:57 AM
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#20
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Senior Member
Join Date: Feb 2007
Location: Florida
Posts: 1,193
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Quote:
Faith....there was at one time an interesting post on this forum by a gentleman who provided a very detailed discussion of a process he uses to keep his tanks clean and odor free. It involves using laundry detergent, Calgon and ocassional bleach.
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Do not know why, but that is called the Geo Method. If you do a Google search for Geo Method you will get several pages of results.
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06-22-2011, 05:39 PM
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#21
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Senior Member
Join Date: Oct 2006
Location: Rochester NY
Posts: 2,706
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Dump the black tank after every trip. Otherwise it 'cooks' in the black tank.
I do use plenty of fresh water when flushing, adding extra when on a short weekend.
Dump the black, follow by the gray. Then add the black tank deodorizer with about 1-2 gallons of water. Good to go for the next trip.
__________________
Don
'07 Winnebago Journey 34H - CAT C7, Koni's, MCU's, SS Bell Crank, Safe-T-Plus
'07 HHR Toad, SMI AFO, Blue OX
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06-23-2011, 01:08 AM
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#22
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Senior Member
Fleetwood Owners Club Ford Super Duty Owner
Join Date: Apr 2008
Location: Monroe, Ga USA
Posts: 708
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Quote:
Originally Posted by bldrbob
I dump even if not very full. Then refill with fresh water and dump again. Then add some water so tank is not completely dry.
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............Times two, I just can't justify leaving it in there when all I have to do is pull a lever, and if it sets for two weeks or 6 months, it's clean, JMHO..........Good luck and travel safe.
David G.
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_____________________________________________
USAF 1959-1963/ JFK Innaguration parade 1961,
1997 Fleetwood Southwind 37Y, 460 ENGINE on FORD chassis, Power Platform with Tag Axle.
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06-23-2011, 12:56 PM
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#23
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Senior Member
Fleetwood Owners Club
Join Date: Aug 2009
Posts: 959
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I put some bleach (2 quarts in a 50 gallon tank) in the black and grey tanks once a month, let it sit overnight and dump the next day.
__________________
Fleetwood Providence 2008 40e
Ford F-350 4x4 Diesel 6.0L 2006
Honda CR-V 2006
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06-23-2011, 03:44 PM
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#24
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Senior Member
Join Date: Oct 2006
Location: Rochester NY
Posts: 2,706
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1/4 cup bleach with 15 gallons water would suffice, using this mixture to fill about half way the capacity of the tank. Let it sit for about 2-4 hours. Drive it and dump it. Bleach isn't good for seals.
__________________
Don
'07 Winnebago Journey 34H - CAT C7, Koni's, MCU's, SS Bell Crank, Safe-T-Plus
'07 HHR Toad, SMI AFO, Blue OX
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06-24-2011, 12:50 AM
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#25
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Senior Member
Join Date: Apr 2010
Posts: 637
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Pusherman.....please do NOT misinterpret my question to you. I am trying to learn from a fellow RVer, not cause a stir.
You said bleach isn't good for seals. Why is that? I would think that straight bleach in any tank would not be good. But a cup or two diluted in 20 + gallons of water should be OK....no? Washing machines have many seals within....and bleach is routinely added at much higher concentration than the usual RV. Most seals used today are neoprene, impervious to most liquids. I would appreciate any info you can provide 'cause I sure don't need internal plumbing seals to expire because of the bleach that I use as part of my tank cleansing process. Thanks for your input....
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2003 Fleetwood Revolution DP
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07-30-2011, 07:09 AM
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#26
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Senior Member
Join Date: Nov 2010
Posts: 232
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If we are at a campground I fill the black tank full and dump. I use the Calgon and Dawn method and it has worked great. I can look down into the tank and it is clean as can be. This is on a 95 Winnebago. I don't like to leave stuff in the tanks for a week or more.............. just because.
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07-30-2011, 08:03 PM
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#27
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Junior Member
Join Date: Jul 2011
Posts: 16
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Bleach is just fine to use, but be careful not to mix with the blue stuff as it is a toxic mix.
Another suggestion for cleaning, is a half bag of ice after you dump, for the ride home, it will knock off any side residual,
and it may even get that broken sensor to work again.
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07-30-2011, 08:34 PM
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#28
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Member
Join Date: Jul 2011
Location: Norfolk
Posts: 86
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Here ya go...
The Geo Method
Just NEVER allow a DRY tank...
__________________
USN, Ret. - Dynamax DynaQuest 32XL
'71 BMW 2002, '99 BMW 528i, '90 Porsche C2
...and four Wire Hair Mini Dachshunds
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