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Old 02-11-2012, 02:07 PM   #1
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Toilet Chemicals VS This Method

I talked to a friend today and got onto the subject of RV toilet chemicals. (how did that ever come up?) He was telling me that the RV park that he stays in (seasonal) wants them to use only the following for toilet chemicals.

1/4 cup of liquid fabric softener after each dump. They claim this will keep the nasties from sticking to their tank walls.

1/2 cup laundry detergent as a sanitizer and odor control.

Has anybody heard of this before? I don't want to open an discussion on what is good or bad in relation to commercial tank chemicals. Everybody has their favourites. I just wonder if anybody has tried this combination and if so, does it work. He claims that it works better than everything he has tried in the past. He also claims that for the first time in years he can get consistent accurate tank level readings.


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Old 02-11-2012, 02:26 PM   #2
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I've heard of it before but have not used that method.

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Old 02-11-2012, 02:33 PM   #3
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Similar to what I do - I use water softener and bio-degradable laundry soap (along with 5 to 10 gal of water) after dumping and when I plan to drive for a day or so. Once a month or so.
I think the driving part (the sloshing) cleans out the tank. The water alone would probably do the trick.
If you are just sitting in one place I don’t think it would do much
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Old 02-11-2012, 02:58 PM   #4
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It's called the GEO method. Google it.
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Old 02-11-2012, 05:07 PM   #5
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Yep, GEO Method. Many satisfied users. We use it except when we do not use anything but water.
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Old 02-11-2012, 06:03 PM   #6
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If I use a portable water softener ( On The Go Portable Water Softe - Portable Water Softener - OTG2-CWI3M - Fresheners & Softeners - Camping World ) would I only need to add the laundry soap or Dawn dish soap?
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Old 02-11-2012, 06:09 PM   #7
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I use liquid tide with fabric softner in it.
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Old 02-11-2012, 06:12 PM   #8
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Originally Posted by tomwalt View Post
Similar to what I do - I use water softener and bio-degradable laundry soap (along with 5 to 10 gal of water) after dumping and when I plan to drive for a day or so. Once a month or so.
I think the driving part (the sloshing) cleans out the tank. The water alone would probably do the trick.
If you are just sitting in one place I donít think it would do much
+1 That's how I use it.
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Old 02-11-2012, 08:36 PM   #9
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That's about the amount I use of those. I buy the softener and soap at the Dollar store.

After a trip I'll fill the 2 black tanks I have completely and let it sit for a couple days and then drain, flush and add the soap and softener with a couple gallons of water and I'm ready for the next trip.

In the summer 110 degrees is possible where I live and I have no problems with odor.
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Old 02-11-2012, 10:03 PM   #10
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There are a couple of threads on here that discuss this very method. I have been using it for a couple months now. No more false readings from tank sensors and no smell.
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Old 02-12-2012, 06:21 AM   #11
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Have used the softner, but now use Oxy versatile and tide. The Oxy softens and cleans plus boosts the detergent.
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Old 02-12-2012, 12:27 PM   #12
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I fill my fresh tank with soft water from home and throw in a golf ball sized packet of detergent I found at Safeway.
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Old 02-12-2012, 12:40 PM   #13
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The "Geo" method of cleaning a tank.

Dump, Add 1/2 cup Water Softener (Calgon preferred)
Add 1/2 cup dishwashing liquid (Dawn blue preferred)

Add water (I usually add about 20-30 percent of the tank capacity.

DRIVE (Sloshing the mix around well)

Dump.... again.

First time I did it the sensors Showed FULL for a couple of days (Till the bubbles went pop pop pop, tanks was full of bubbles) then empty, Since then, not so much joy.

Tank treatments fall into two groups:

Chemicals: Do not use these, there are too many chemicals in our water already, they do not work, are not effective, and at best are a waste of money.

Waste Digester (Biologicals) These.... Actually work,, if you leave them in the tank long enough. but ... Well.. Most of us dump more often than that.

I did use them during the summer when I was parked at home.. i used the toilet from time to time (usually at least once a day) even though I was within 100 feet of the sticks and bricks. and then I'd use the waste digesters.. Since I dumped like every 2 months.
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Old 02-12-2012, 01:02 PM   #14
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The GEO method does two things. It cleans the tank and it puts the greasy solids in suspension.

After dumping and flushing refill the black tank with 5 gallons of water. Put in one cup of laundry detergent and one cup of water softner like calgon. Do this only if you will be traveling so it can wash the inside of the tank with the sloshing action. Now the next time you dump you will find the flushing needed is much less. This saves water too.

I am a full timer and use this at least once a month when traveling. I use no chemicals and the only time I get odor is in the high heat and when it is dumping time. It works like a charm.

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