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Old 07-07-2016, 04:37 PM   #11
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Sometimes the sensors are somewhat reliable and sometimes not.

I really don't believe it has a tremendous amount to do with what chemicals/method you use.

I think installation and connection reliability suffers during manufacturing.

I've used the same cleaning methods over several different rigs and the sensors acted differently each time.

As someone else stated, I simply don't/can't trust the sensors.
After some time, you will learn how to gauge tank levels in ways other than using the sensors.
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Old 07-07-2016, 04:40 PM   #12
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Black Tank Flush

Every time I dump I try my hardest to use the black tank flush. I would say I am successful in using it 95% of the time. The only time I do not is when I am pressured at a public dump. Each time I am able to get the tank to read "Empty" which of course is my goal. As far as the indicators being correct. Mine seem to indicate that the tanks are more full than they really are. A day after I dump they might show 2/3 full. Maybe that is a good thing. It's just me and my DW so after these few years I have a good feeling of when I need to dump. I would do my best to get the tank cleaned out so the indicators work and try to maintain that level of cleanliness.
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Old 07-24-2016, 01:25 PM   #13
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Some years ago, we were having issues with our black tank sensor not reading correctly even immediately after dumping. It was suggested to us to dump a small bag of ice into the black tank via the toilet just before pulling out to go down the road. The movement of traveling causes the ice to rub against the sides of the tank and cleans the sensor. That seemed to do the trick. This was in our Airstream.

I"ve looked through our booklets and can't find anything to tell us how to use the black tank flush -- could someone who has the time, please explain how to accomplish this? I believe I've read in the past to be very careful about where the hose is hooked up to avoid flooding inside the trailer, is that correct?

As info, we have a 2015 3025W Windjammer. Thanks. Deb
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Old 07-24-2016, 01:44 PM   #14
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Quote:
Originally Posted by Windjam2 View Post
I"ve looked through our booklets and can't find anything to tell us how to use the black tank flush -- could someone who has the time, please explain how to accomplish this? I believe I've read in the past to be very careful about where the hose is hooked up to avoid flooding inside the trailer, is that correct?
by the way you've worded your question, I assume you don't know where the "black tank flush" connection is,...... if that's true, you may not have one, it would be a connection mounted on the outside wall, usually somewhere above the dump valves that is labeled "black tank flush" where you attach a garden hose and spray water into the black tank,...... after dumping, you can spray more water by way of the BTF and rinse the tank again, and again and again, until you are satisfied with how clean it is,....... if you don't have one there are several aftermarket flushing devices that work very well,.......
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Old 07-24-2016, 02:57 PM   #15
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Fella10, thanks for your reply. For some reason, I thought for certain we had a black tank flush on our Windjammer, but DH said he didn't know how to use it, so I looked through booklets in our packet and couldn't find anything. I decided to post here to see how to use it, then after I read your post, I went outside to find it and couldn't. So, unless I was looking in the wrong place, we must not have one, hmmm. I'll get DH to go out with me to take another look when he returns.

Thanks again for responding.

Deb
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Old 07-24-2016, 03:13 PM   #16
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Originally Posted by Windjam2 View Post
Fella10, thanks for your reply. For some reason, I thought for certain we had a black tank flush on our Windjammer, but DH said he didn't know how to use it, so I looked through booklets in our packet and couldn't find anything. I decided to post here to see how to use it, then after I read your post, I went outside to find it and couldn't. So, unless I was looking in the wrong place, we must not have one, hmmm. I'll get DH to go out with me to take another look when he returns.

Thanks again for responding.

Deb
I have a friend who's flush is mounted on the back outside wall, but it's not a Forest River trailer, if you don't have one, the two links below are very effective aftermarket flush units,.......I prefer and have installed 4 of the quickie flush units and they work very well(2 black tanks and 2 gray tanks)

https://www.amazon.com/Camco-40123-Q...=quickie+flush

https://www.amazon.com/Camco-40126-T...RS5B4S0F67NPKX
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Old 07-29-2016, 10:45 PM   #17
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Thank you fella10. When my DH returned home, he located the black tank flush and showed it to me. I don't know how I missed it when I looked for it. I remembered originally seeing it, but then later couldn't find it.

Deb
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