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Old 11-04-2018, 10:15 PM   #11
Bnrc73
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I bought a 10' endoscopic camera on Amazon for around $30. Run it down your toilet and watch on your smartphone to see what's going on in your tank.
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Old 11-05-2018, 06:30 AM   #12
rbrdriver
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Sometimes "looking down the tank" from toilet doesn't work if your toilet isn't directly on top of black tank like a lot of RV's. Then all you will see is a bend in your down pipe.......
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Old 11-05-2018, 07:23 AM   #13
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Originally Posted by Tufelhunden View Post
Anyone tried the geo method, dawn and calgon or borax as a softener to clean the tank. Just saw this on YouTube, so it must be great lol, but the idea was interesting as sensor/tank cleaner.
Not sure this is staying on topic for this thread, but to answer your question; we've used the geo method for 6 years with two different campers. No problems whatsoever. IMHO the real key is to get a good complete flush of the tank. Just like the bowl, fill it and flush it and repeat at least once just to be sure.
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Old 11-05-2018, 08:38 AM   #14
realgoodbear
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I have the same problem. I have a clear plastic extension on my discharge pipe with a manually operated valve (due to the issue I'm having). When I flush the black tank, I believe I am doing a thorough job and the water runs clear. Once I believe it is finished draining, I close everything. Once I move the trailer I see light brown water in the clear plastic extension EVERY time. I suppose my problem is really that my factory installed valve is faulty, but if the tank is empty why is there anything still coming out? I have had the trailer in for repair of the black tank valve and they told me it was just "gunked" up and once they thoroughly rinsed it, it was "fixed". I never put tissue of any sort in the toilet, the only thing that goes in there is ummmm.....stuff. It is a 2015 Voltage 3895. Any advice out there?
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Old 11-05-2018, 08:58 AM   #15
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I have the same problem. I have a clear plastic extension on my discharge pipe with a manually operated valve (due to the issue I'm having). When I flush the black tank, I believe I am doing a thorough job and the water runs clear. Once I believe it is finished draining, I close everything. Once I move the trailer I see light brown water in the clear plastic extension EVERY time. I suppose my problem is really that my factory installed valve is faulty, but if the tank is empty why is there anything still coming out? I have had the trailer in for repair of the black tank valve and they told me it was just "gunked" up and once they thoroughly rinsed it, it was "fixed". I never put tissue of any sort in the toilet, the only thing that goes in there is ummmm.....stuff. It is a 2015 Voltage 3895. Any advice out there?
Think about the breakfast dishes: If you have grits, eggs, bacon and toast with grape jelly, let the plates sit on the table for an hour (drying the egg yolks on the plate surface) then move them to the sink, run them under the faucet for a few minutes, then hold them up for "inspection".... Will they be "clean" or will you still see "bits and pieces of bacon encrusted with yellow egg yolk" still dried on the plate surfaces ???

You'll "never" (yes, this is one time you can say "never say never") get the entire contents of the black tank "clean" by flushing with clear water under "kinda medium spray pressure"....

Essentially, you'll always be able to add a couple gallons of water, slosh it around by towing and expect it to come out "tainted by brown stains"......

Since there's no means to use "mechanical scrubbing action" to move "stuff" off the inside walls of the black tank, it'll never be "breakfast plate clean" when the little bit of cold water rinse is finished......
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Old 11-05-2018, 09:08 AM   #16
Tufelhunden
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Originally Posted by Canonman View Post
Not sure this is staying on topic for this thread, but to answer your question; we've used the geo method for 6 years with two different campers. No problems whatsoever. IMHO the real key is to get a good complete flush of the tank. Just like the bowl, fill it and flush it and repeat at least once just to be sure.
I mentioned it for two reasons, one to help the person saying their tank is not getting cleaned and two to see if it actually works, from other RVers, before they try it.
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Old 11-05-2018, 11:42 AM   #17
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yea I use the Geo method.. Well started out using it.. but now have my own Geo method..I use Gain fabric softener, dawn, and what ever else I feel like throwing down there,,.. Like John said above, Quote "You'll "never" (yes, this is one time you can say "never say never") get the entire contents of the black tank "clean" by flushing with clear water under "kinda medium spray pressure".... End Quote.. I understand this, and even using the black tank sprayer and a top side swivel head sprayer a couple time a year it still never comes really clean.. But dang it sure does smell good. lol
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Old 11-05-2018, 01:04 PM   #18
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Originally Posted by Bnrc73 View Post
I bought a 10' endoscopic camera on Amazon for around $30. Run it down your toilet and watch on your smartphone to see what's going on in your tank.
Which one? Water proof?
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Old 11-06-2018, 04:33 AM   #19
itat
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yea I use the Geo method.. Well started out using it.. but now have my own Geo method..I use Gain fabric softener, dawn, and what ever else I feel like throwing down there,,.. Like John said above, Quote "You'll "never" (yes, this is one time you can say "never say never") get the entire contents of the black tank "clean" by flushing with clear water under "kinda medium spray pressure".... End Quote.. I understand this, and even using the black tank sprayer and a top side swivel head sprayer a couple time a year it still never comes really clean.. But dang it sure does smell good. lol
Calgon is a water softener. Fabric softener is not the same as water softener. Water softener makes the inside walls of the tank slippery inhibiting solids from sticking to anything inside, including the sensors, and making the flush more effective. As I said in post #9, I also use a bacteria product called RV Digest-It to help break down the solids in the tank. Another popular product that’s similar is called “Happy Camper”.

I agree that it’ll never be totally clean though.
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