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Old 07-28-2013, 09:14 PM   #1
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Black tanks.

Ok. I know the manual says to manage your blackwater tank a certain way. But does anyone have any suggestions or recomendations on how to do it and what chemical to use?
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Old 07-28-2013, 09:24 PM   #2
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Lots of threads about this. Do a search for geo method. That is what many of us use. Basically, rule #1 is use plenty of water and always let the tank get close to 2/3 full before dumping, and add 5 gal our so of water after dumping. The geo method I use is 1c laundry det and 1c calgon water softener added to the fresh 5g of water after dumping. No odors, no harsh or formaldehyde containing chemicals, and stuff that's easy to find.
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Old 07-28-2013, 09:47 PM   #3
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Ok thanks for the info. Theres so much info out there i needed to know what was most widely used. That helps alot.
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Old 07-28-2013, 09:54 PM   #4
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Can't go wrong with the Geo Method. I second that.
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Old 07-28-2013, 10:09 PM   #5
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I've been using the Calgon method with 2 or 3 gallons of water before you travel to your camping destination, that way it gets sloshed around in the tank, thereby coating the sides as well with the slippery water substance. I live in Florida, and after I dump my tank, I have seldom ever even needed any deodorizers. Been 5 years now, and this has worked for me. Randy
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Old 07-28-2013, 10:27 PM   #6
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Quote:
Originally Posted by jtstromsburg View Post
Lots of threads about this. Do a search for geo method. That is what many of us use. Basically, rule #1 is use plenty of water and always let the tank get close to 2/3 full before dumping, and add 5 gal our so of water after dumping. The geo method I use is 1c laundry det and 1c calgon water softener added to the fresh 5g of water after dumping. No odors, no harsh or formaldehyde containing chemicals, and stuff that's easy to find.
What he said
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Old 07-28-2013, 11:27 PM   #7
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See the Library in the forum menu bar at the top of the page. Look under Plumbing > Geo Method.
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Old 07-29-2013, 07:33 AM   #8
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What laundry detergent do you recommend?
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Old 07-29-2013, 07:41 AM   #9
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Quote:
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The geo method I use is 1c laundry det and 1c calgon water softener added to the fresh 5g of water after dumping. No odors, no harsh or formaldehyde containing chemicals, and stuff that's easy to find.
The "c" should not be a "cup" - way too much and a waste of reagent (IMO). I use a capful of each after every dump/turboflush and 5 gallons of water.

I use a "standard wash load" amount of laundry detergent. In a pinch, even a long squirt of dish-wash soap works great. I am now using a "laundry pod" when the DW switched to those and it seems to be working as well as the liquid laundry soap. Time will tell and I will let you know.
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Old 07-29-2013, 07:54 AM   #10
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Quote:
Originally Posted by jtstromsburg View Post
Lots of threads about this. Do a search for geo method. That is what many of us use. Basically, rule #1 is use plenty of water and always let the tank get close to 2/3 full before dumping, and add 5 gal our so of water after dumping. The geo method I use is 1c laundry det and 1c calgon water softener added to the fresh 5g of water after dumping. No odors, no harsh or formaldehyde containing chemicals, and stuff that's easy to find.
Not sure i understand the 2/3 rds full suggestion. If we are camping for a few days, i will dump before going home. If on the road, will do it every second or third day. Guess it is because i dont want to haul the weight.

If stationary, i let it go to the 2/3 level.

Why is it better to let it get pretty full before dumping?
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