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louiskathy's avatar
louiskathy
Explorer
May 15, 2015

Black Tank odor - gone.

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Product Features
Non-corrosive. Essentially non-toxic LIVE ACTION bacterial formula
Certified free of gram-negative bacteria (i.e. salmonella and shigella)
Eucalyptus odor counteractant Digests organic odors at the source
Removes organic waste odors on carpet and water-safe, colorfast fabrics; such as clothing, drapes, upholstery, etc.
Counteracts urine odors that hide in cracks and crevices Excellent ready-to-use drip system refill.

OdoBan Professional Eucalyptus BioOdor Digester - 1 Gallon

Note the word... DIGESTER. (Not a disinfectant or a cleaner)

We have not moved our class A since October 2011. It's not easy to keep a black tank clean that is not slooshing around at least once every six months. Our internal strayer died in CA when we didn't filter the water to the sprayer. Sand clogged it. When we dump our black tank, we use a hose down through the toilet. It's not pleasant. At all. I needed SOMETHING to kill the smell when I had to have that flush valve open to hose out the tank.

I'm not looking for advice... I'm telling you what just WORKED. It totally knocked out my black tank odor. I've tried pine-sol now and then (don't like to use it weekly). I've tried the GMO method. I've tried Orange granules. I think I've tried them all.

I've even tried that RV DIGEST IT.. which touts that you don't have to hose the black tank out after flushing because you want the base of stuff left in the tank for the next week for it to work properly. Some things helped better than others but until I tried this stuff... nothing really killed the odor.

The first time I tried this stuff, we dumped the black tank as we normally do. Closed the black valve and added water to the black tank, as we always do. I put about 2 cups of this new stuff into the toilet and filled the bowl up with the hand sprayer. I let that sit in the toilet bowl for awhile before I let it go into the black tank. (I like to see how it cleans/deodorizes the bowl just as a test for what it might be doing for the tank.) Did okay. I'm not sorry I put in 2 cups of it the first week. I think that was a good decision. I also let the black tank get completely full. It was coming up the tube and the toilet would give that air bubble indication of a FULL black tank.

I noticed right away that during the rest of the week there was no smell when I flushed the toilet. None.

Our black tank fills up in about 8 or 9 days. If I remember right, it's a 65 gal black tank according to the spec sheet that came with the rig... 2001 Winnebago Adventurer. I don't skimp on water when we've got FHU...and I wanted to make sure to keep things stirring up really good to give this stuff a chance to get into all the right places.

When it came time to dump... there was no smell what so ever as I hosed it out. None. Hubby said that there were no chunks coming thru when he opened the valve up either. We have a clear plastic piece between the valve and the hose that allows us to see what's coming down the pike.

So this week I only put in 8 oz of this stuff - we'll see if it does as well. Once the temps get above 80 deg... that will be the real test. I'm in the NW btw.
  • I guess my overzealous comments on that stuff was really meant to be a heads up to anyone that was going to rush out and buy it, not knowing about the very strong odor and the inability to remove the smell of it once applied. Especially if used in the small confines of an RV. :C

    To the OP: A gray tank can smell just as bad. You might be attacking the wrong tank! And/or the water in the p-traps in the bathroom sink went dry from sitting and your blank tank smell if coming up from there. Same thing with the kitchen sink p-trap if dry also.

    20 years here of one bottle of blue stuff per tank. Dump, fill with water, dump again. No hosing no hockus pocus treatments, p-traps always full. and NO smell in the RV. Just saying.
  • And here we have diversity in full view. It's either the best product ever or the worst product ever depending on your perspective.
  • louiskathy wrote:
    OdoBan Professional Eucalyptus BioOdor Digester - 1 Gallon Note the word... DIGESTER. (Not a disinfectant or a cleaner)

    RV DIGEST IT.. which touts that you don't have to hose the black tank out after flushing because you want the base of stuff left in the tank for the next week for it to work properly.

    :E
    It's a "holding tank", NOT a septic field. And should be dumped clean and only plain water left on the bottom between dumps.

    BTW: OdoBan is the most horrific, nasty smelling FARM and KENNEL cleaner. If you or your family have any breathing problems it will put you in the hospital. And if you don't have breathing problems you WILL after being around this cleaner. AND the stench of this product lasts FOREVER.

    I would not even let a sealed bottle of this stuff near my RV.
  • There is a garbage truck yard just off the freeway in N. Los Angeles. Never been there but you can tell when they are washing them out from the Eucalyptus smell coming from the yard.
  • old guy wrote:
    8 ozs seems like a lot to use. but if it works who am I to judge. glad it is doing it's job


    I'm going to experiment and see how much I need to use and how often I need to do it. We had a few days of nice warm weather and then it cooled down again... but those few days of hot was when I had to hose it out and dump the tanks... and I just knew I had to find something to kill this odor before summer really got here.

    Years ago we had a few litters of puppies born and raised in the house until they were 10 weeks old before they went to new homes. My kitchen floor and my sons room had a number of accidents. Some of my living room carpet did , too. I used an odorban type cleaner to wipe out the odor causing bacteria at it's root. It's the same stuff they used in the Swine raising barns and I ordered it from a livestock / pet supply catalog. (I can't remember it's name.) This is along the same lines of how it works. Won't harm skin. Gentle to use on fabric. Kills the odor causing bacteria.

    Home Depot carries this line OdorBan line of products but not this exact one. The ones they carry are the cleaners and disinfectants.
  • Old-Biscuit wrote:
    So the only time you smelled the odor was when flushing?


    Yep. And if our internal black tank sprayer still worked... I wouldn't be involved in flushing the black tank at all. Hubby could do it all from the outside.

    The odor is bad in the Class A. Much worse than our truck camper. I can't even remember ever thinking the odor in the TC was a problem. (We use the TC for trips. I just use the orange granules in there and it does not have any odor problem... I use a hose in there too to flush it out since it does not have an internal tank sprayer.)

    I've been hosing out black tanks in one rig or another since 1993. The odor I am dealing with in this rig is far worse than it should be. I'm just thinking that setting still for long periods of time is the cause of the problem.
  • 8 ozs seems like a lot to use. but if it works who am I to judge. glad it is doing it's job

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