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Old 10-18-2009, 09:07 PM   #11
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Re: RV Toilets, black and grey wars

I found two seperate tanks(one 46, one 27) that will fit where I want it to go. I need a few more measurements before I pull the trigger. It looks like, at a minimum, I will be able to move grey water into the black water tank via gravity if the grey water gets full faster but not in a flushing fashion. I'll probably install flush valves into each tank. They will have tank sensors so I might as well. There is alot of stuff going underneath this bus so space is at a premium. They will be stacked on top of each other in some configuration directly underneath the toilet and shower. Im not sure where the p-trap on the shower is going yet hence the need for a final measurement, plus there is an exhaust pipe to work around that will probably require a heat shield of some sort. I'll make it work one way or another. Even if I have to reroute an exhaust pipe. That will give me an excuse to increase exhaust flow(by various methods) and tune the engine up a bit.
At any rate the plumbing location was the major hurdle. Everything else will play out around it fairly well. I wish I knew a bit more about how this stuff works in real time. I have had an old Yellowstone and an Airstream but neither one had "original" working plumbing. The Yellowstone was "modified residential" by yours truly for hunting leases. The Airstream was a project never started and sold to buy the bus. Needless to say i'm good at riggin' it but this go-round it has to work right and look good because my kids principal may be visiting it during the playoffs.
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Old 10-19-2009, 12:26 AM   #12
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Re: RV Toilets, black and grey wars

Quote:
They will have tank sensors
No personal experience, but FWIW what I've read on RV forums: The sensors that have probes inside the tanks get gunked up in short order, and fail to read properly. People either pretend that they do not have gauges and go back to estimating, or they spend a lot of time and effort trying to keep the probes clean.

There is an alternate style that mounts electronics against the outside of the tank, and electronically senses the presence of the liquid through the plastic tank walls. This style is reported to be reliable. As always, YMMV.
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Old 10-19-2009, 12:04 PM   #13
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Re: RV Toilets, black and grey wars

I talked to a guy that had a 32 gallon black tank (only) no grey. He said that he had reached the point where his black tank could last him (by himself) up to 30 days. His grey water tank was a 5 gallon bucket that he emptied regularly.
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Old 10-19-2009, 05:34 PM   #14
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Re: RV Toilets, black and grey wars

As far as toilets go, give this one some consideration. Manual powered pump toilet so no electricity. I am going to pump from my gray water tank into my black. It has automatic sealing so no back wash into gray tank and powers the "Black water tank turtles" out of bowl and into tank.

http://www.jabsco.com/products/marine/t ... 0/iid_4268

/index.htm
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File Type: jpg Jabsco toilet.jpg (23.6 KB, 487 views)
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Old 10-19-2009, 07:09 PM   #15
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Re: RV Toilets, black and grey wars

Those toilets are an engineering marvel for sure and i like the idea alot. Unfortunately, I believe I would have to have a small flat video screen mounted directly across from s-itter that would display a youtube video showing the proper usage of the thing. People don't read anymore. Or, have a designated instructor, which may not be a bad thing relatively speaking. This is probably where the term "dry dock" comes from.

One question...and it's loaded, literally. Assuming the black tank is 4ft away how much water would it take to get the "average" load to the black tank. I am in the septic business but have no clue what the average load is. Too many variables.
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Old 10-19-2009, 08:13 PM   #16
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Re: RV Toilets, black and grey wars

Having been what my uncle refers to as a "Turd Burgler" and pumped septic tanks for a living before hanging up my hose and taking a job as a transit bus driver, I would say it is going to depend on the drop. The more drop, the less water it is going to take. I am also going to increase the size of the pipe after it goes thru the floor. If you go to the site and look, you will notice that the flushage goes out the back thru a 1 1/2 " exit pipe. After passing, I am going to increase to 2 or maybe even 2 1/2 inch pipe just to make passage better.

When you have completed the job....so to speak... you twist the handle 1/4 turn to unlock and pull up, bringing in water from the gray water tank and flushing into the bowl. instructions say it will discharge up to 9ft above the level of the bowl, so I assume (bad thing to do) that it power flushes into the black water tank.

Quoting from site:
* Powerful self-priming, double action piston pump.
* Strong swirl action for efficient flushing.

The buggar is a bit expensive, $200 with me picking up at local marine store, but I am 50 years old now and I just gotta have a quality throne.

happy pooping!!
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Old 10-19-2009, 09:27 PM   #17
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Re: RV Toilets, black and grey wars

What do you mean by "the drop" bwaaahahaa. Sorry, couldnt help myself. I have heard it all being in the business. The conversation, for some reason, invariably turns to s...

I was just curious though on the gallonage. I think i have my tanks configured. There is still the shower p-trap issue to deal with.
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Old 10-20-2009, 06:41 PM   #18
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Re: RV Toilets, black and grey wars

Dude! I'd think that was a hoax photo except for all the cables running along the wall & floor!

If the job gives you that much $h!t, just QUIT!
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Old 10-20-2009, 08:17 PM   #19
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Re: RV Toilets, black and grey wars

Tim Taylor called it the "Lazy-Bowl". But his had a fold out foot rest, but no computer stand... Must be a different model. ^.^

I did find this picture while looking for the Lazy-Bowl... Look under the chair.
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