wa8yxm
Davison Michigan (East of Flint)
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Joined: 07/04/2006
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It empeied the 2/3 full Mine said that for over 15 years only with extreme effort could I get it to drop down to 1/3 and it only read empty twice once when new and once after an extreme cleaning.
The sensors are a joke if you really want to know how ful it is SEE LEVEL (google it_)
Home was where I park it. but alas the.
2005 Damon Intruder 377 Alas declared a total loss
after a semi "nicked" it. Still have the radios
Kenwood TS-2000, ICOM ID-5100, ID-51A+2, ID-880 REF030C most times
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DallasSteve
Texas
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Joined: 05/28/2015
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evanrem wrote:Have you physically looked in the toilet after emptying? If not shine a light down and if you see the bottom of the tank you are good. I stopped relying on the sensors long ago.
I've never tried that. I thought maybe it wasn't a direct line to the bottom. So I turned off the water, emptied the tank again, and opened it and shined a flashlight. It's dark. I can't tell if I'm seeing the bottom or not. Maybe you could. My eyes aren't that good any more.
2022 JAYCO JAY FLIGHT SLX 8 324BDS
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All my exes live in Texas, that's why I live in an RV
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Tyler0215
Iowa
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Joined: 03/13/2013
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Put a yardstick in the toilet to feel the bottom of the tank. Pull it out. You will KNOW the level.
Quit buying chemicals to put in the tank.
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Cptnvideo
Arizona - most of the time
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Joined: 11/05/2006
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I does sound like blockage. My pipe between toilet and tank has an offset, see flashlight or yardstick wouldn't work. And the 4 LED tank monitor system is a JOKE.
I recently installed the SeeLevel system - what an improvement!!!!
Bill & Linda
Arizona
2019 Dodge Ram Laramie 3500 dually 4x4 diesel
Hensley Trailer Saver BD5 hitch
2022 Grand Design Solitude 378MBS
1600 watts solar, Victron 150/100 MPPT controller, GoPower 3kw inverter/charger, 5 SOK 206AH LiFePo4 batteries for 1030 ah
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DallasSteve
Texas
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Tyler0215 wrote:Put a yardstick in the toilet to feel the bottom of the tank. Pull it out. You will KNOW the level.
Quit buying chemicals to put in the tank.
I put one of the chemicals I bought in the tank, and the smell went away in about an hour. I'm pretty happy about that. Tomorrow I may put some more water in the black tank and see if that cleared up the blockage. Besides the cost is there another problem with the chemicals?
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DallasSteve
Texas
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Boomerweps wrote:There is a sewer fitting that’s clear and has a garden hose inlet. You can use this to flush the drain lines out. Worse case, you can backfill your tank this way and see if it pushes any blockage around.
That sounds interesting, but I don't understand. Is there an Amazon link or something you could share? My trailer comes with a black tank flush connection. Will that do the same thing?
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Bobbo
Wherever I park
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Joined: 09/16/2007
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On my first RV, I sometimes had a slow drain when dumping, and sometimes not. One day, after about 2 years, I was dumping my black tank at home using a macerator. I had a clear section so I could see when "stuff" stopped coming out. Imagine my surprise when a perfect circle of the tank wall plopped down into that clear section. I did, indeed, have that circular cutout in my tank. Once it came out, I never had a slow drain again.
DallasSteve wrote:Boomerweps wrote:There is a sewer fitting that’s clear and has a garden hose inlet. You can use this to flush the drain lines out. Worse case, you can backfill your tank this way and see if it pushes any blockage around.
That sounds interesting, but I don't understand. Is there an Amazon link or something you could share? My trailer comes with a black tank flush connection. Will that do the same thing?
Flushing from the dump valve end may push a blockage out of the way when flushing from above may not.
Backflush valve
![[image]](https://m.media-amazon.com/images/I/81SO8GaxI2L._AC_SL1500_.jpg)
Bobbo and Lin
2017 F-150 XLT 4x4 SuperCab w/Max Tow Package 3.5l EcoBoost V6
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LouLawrence
Traveling the US fulltime since 2000.
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Joined: 03/16/2021
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There have been many cases of new RV's having the plug that was cut our to connect the valves being left inside. Eventually, that plug gets flushed back to the outlet and clog the whole thing up. The only real way to know what's going on is to remove the valve (having a bucket handy) and see what's what.
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DallasSteve
Texas
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Bobbo
Thanks for that image. Now I understand. That seems like a good idea. If I can't clear my clog I may buy one of those and give it a try.
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Thermoguy
Graham, WA
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Joined: 01/04/2017
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It sounds like you are leaving your grey tank valve open when you are dumping the black tank - is this what you are doing?
If you are, don't do that. Close any other valve that shares the same outlet and only open the valve to the tank you are draining.
The clear pipe is also a great help to "see" what is coming out.
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