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Old 09-20-2019, 01:21 PM   #21
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I like the installed black tank rinse. After the initial dump using the so called full way/ main dump valve I'll close that valve several times for 30 seconds or so, helps dislodge whatever. Before without the tank flush we used a toilet wand, better than nothing but kind of a hassle and doesn't really get down in there.
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Old 09-22-2019, 02:53 PM   #22
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I have a 2020 FKS. Looking at the rear of the camper, the flush outlet is on the left side, at eye level, behind the ladder.
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Old 09-22-2019, 03:39 PM   #23
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I have a 2020 FKS. Looking at the rear of the camper, the flush outlet is on the left side, at eye level, behind the ladder.
Flush outlet or INLET?
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Old 09-23-2019, 04:49 PM   #24
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Thank You!

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Originally Posted by Blackrock View Post
Ah yes the dreaded Fullway Termination Valve
That is what the slide gate valve is called that you open to dump the tank.
Now lets all chip in and warn about what happens if you run the black tank rinse with the fullway termination valve closed.
Thank you very much!
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Old 09-24-2019, 12:11 PM   #25
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??

Anyone want to guess what happens with a little bit of Dawn dish soap in the black tank, and using the black tank flush...

I would suggest not to try it unless you can get to the roof to rinse off the billowing piles of dish soap foaming bubbles...

Thank goodness it was all clean bubbles... brown bubbles would not have been fun, come on...

We keep the black tank super clean, and after dumping and rinsing I had the not so bright idea to put some Dawn dish soap in, with the rinse goin, to add water to the tank to slosh around on the ride home.

The bride stays inside and watches the tank levels and we use walkie talkies to stay in touch.

She says "theres big globs of bubbles flyin around" on the radio.

At that moment I realized how unsmart my idea was.

(the soap foamed up from the black tank flush internal sprayer, built up and went up and out the vent stack to the roof)

One of the rarest moments on earth, because we were at a dump station... and no one was around to see.

That would have been on Youtube I am sure.

Live and learn!
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Old 09-24-2019, 12:15 PM   #26
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Anyone want to guess what happens with a little bit of Dawn dish soap in the black tank, and using the black tank flush...

I would suggest not to try it unless you can get to the roof to rinse off the billowing piles of dish soap foaming bubbles...

Thank goodness it was all clean bubbles... brown bubbles would not have been fun, come on...

We keep the black tank super clean, and after dumping and rinsing I had the not so bright idea to put some Dawn dish soap in, with the rinse goin, to add water to the tank to slosh around on the ride home.

The bride stays inside and watches the tank levels and we use walkie talkies to stay in touch.

She says "theres big globs of bubbles flyin around" on the radio.

At that moment I realized how unsmart my idea was.

One of the rarest moments on earth, because we were at a dump station... and no one was around to see.

That would have been on Youtube I am sure.

Live and learn!
You have to admit....that would've been a great video.
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Old 09-24-2019, 12:20 PM   #27
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You are not kidding!

It was funny.
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Old 09-24-2019, 12:46 PM   #28
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Anyone want to guess what happens with a little bit of Dawn dish soap in the black tank, and using the black tank flush...

I would suggest not to try it unless you can get to the roof to rinse off the billowing piles of dish soap foaming bubbles...

Thank goodness it was all clean bubbles... brown bubbles would not have been fun, come on...

We keep the black tank super clean, and after dumping and rinsing I had the not so bright idea to put some Dawn dish soap in, with the rinse goin, to add water to the tank to slosh around on the ride home.

The bride stays inside and watches the tank levels and we use walkie talkies to stay in touch.

She says "theres big globs of bubbles flyin around" on the radio.

At that moment I realized how unsmart my idea was.

(the soap foamed up from the black tank flush internal sprayer, built up and went up and out the vent stack to the roof)

One of the rarest moments on earth, because we were at a dump station... and no one was around to see.

That would have been on Youtube I am sure.

Live and learn!
OMG! I'm so glad I read this!

I was seriously thinking of the Dawn/Calgon combo the full-timer Escapees keep telling me they use instead of chemicals. I so would have ended up on YouTube.
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Old 09-24-2019, 01:18 PM   #29
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We tied down in an RV Resort for three months this summer and I dumped the black tank when full, rinsed it each time. When we left I dumped and rinsed then dropped a laundry tab down with plenty of water. Drive home was around 150 miles and I stopped at the Indian Casino and gave it a final dump and rinse. No big bubble problems.
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Old 09-24-2019, 02:22 PM   #30
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OMG! I'm so glad I read this!

I was seriously thinking of the Dawn/Calgon combo the full-timer Escapees keep telling me they use instead of chemicals. I so would have ended up on YouTube.
It is still safe to use the GEO method.

Simply add the Dawn and Calgon through the toilet to the black tank AFTER flushing and adding a bit of water back into the black tank.

The sloshing on the way home will do the mixing.

We have done this for years.
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Old 09-24-2019, 04:38 PM   #31
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It is still safe to use the GEO method.

Simply add the Dawn and Calgon through the toilet to the black tank AFTER flushing and adding a bit of water back into the black tank.

The sloshing on the way home will do the mixing.

We have done this for years.
We haven't ever left any water in our tanks unless there was no dump, but have been told that's not the best practice. Have to think on that...when we run out of the stuff we've already bought.
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Old 09-24-2019, 06:49 PM   #32
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We haven't ever left any water in our tanks unless there was no dump, but have been told that's not the best practice. Have to think on that...when we run out of the stuff we've already bought.
Even if you don't use the GEO method, adding 3-4 gallons of water and your favorite chemical back into the tank is the preferred method after dumping or dumping/flushing a black tank.

Then you are ready to go on the next outing and nothing hardens into cement inside the tank.

The only time I dont add water/chemicals back in is on the last trip/dump before winterizing. Even then the tank gets some antifreeze so it isn't really 'empty' then either.
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Old 09-24-2019, 10:26 PM   #33
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Jus' Sayin...

You would be ok to do the Geo method... I have done that in the past and it worked.

Where I messed up was using the Dawn in the tank and then using the black tank flush sprayer... whipped that detergent into a frenzy I guess...

Same thing when people put dish wash soap like a Dawn instead of dishwasher detergent in the dishwasher and fill the kitchen with suds...

No, I have not done that. Yet.

Haha!
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Old 09-26-2019, 10:22 PM   #34
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On rear left side near ladder
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