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Old 09-13-2006, 11:17 PM   #57
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Lynne,

If you put the blackwater tank under the floor you will need to insulate it to prevent freezing. That will add a couple of inches to your "hang-down" in the back.

I left my blacktank above the floor. I don't know if adding a few gallons capacity is a worthwhile excercise. Can the original tank be repaired?

I added a greywater tank forward of the axle on my '59 tradewind. No problem with drilling holes in the crossmembers. I used about 1/8" per ft pitch. As you said, the pitch can be increased by using the tongue jack.

I also added a flapper valve in the shower drain line to prevent greywater backing up into the shower.

I am locating my dump valves ahead of the axle, so I do not need to worry about pitching the drain line back to the rear of the trailer. That does require that I use a pump to empty the blackwater tank, but I think dumping with a 1" hose is a lot easier than wrestling with a 3" slinky.

I think you should consider locating the dump valves on the side of the trailer, it keeps them more protected from damage.

Good luck with whatever you decide to do. Here is a picture showing the general arrangement of the drain lines from the rear lav and shower. The view is looking forward from the rear curbside corner.
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Old 09-13-2006, 11:36 PM   #58
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Since you are preventing grey water from backing into the tub, are you adding tank level sensors?
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Old 09-14-2006, 01:24 AM   #59
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Markdoane,

Tonight, after another ridiculous conversation with the guy who's making the tank(s), I reverted back to my original plan, because he just didn't seem to "get" the whole grey tank arrangement.

I'm having him copy my black tank for above-floor re-install, will go back to blue tote concept for grey for now. We're going to be hard-wired into a septic system for the next year or more anyway, so I'll give it more thought in the interim.

Still need a shower trap, tho, don't I?
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Old 09-14-2006, 07:22 AM   #60
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Quote:
Originally Posted by Safari Tim
Since you are preventing grey water from backing into the tub, are you adding tank level sensors?
Tim,

My grey tank sits crosswise, in front of the axle. It has two vents, one comes up under the kitchen sink, and the other comes up in the pantry. I mounted a vertical tee in the pantry vent, with a screw in cap.

To check the tank level I remove the cap and use a calibrated dipstick.

If I get some time, I will mount a probe in the tee, but that will happen down the road.
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Old 10-04-2006, 05:26 PM   #61
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Getting ready

OK Guys,

Getting ready to order. Here is the plan I came up with.

The top of the tank will be where the kitchen sink drains to and will also tie into a roof top vent.

The tank inlet on the side toward the left will be where the tub drains into and the fitting on the side on the right is going to be the drain.

This whole tank will just fit within the cross members with about an inch to spare. My plan is to drill two 2" holes in the cross member for the side fittings.

So, before I actually order it, does it look OK?
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Old 10-04-2006, 05:38 PM   #62
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Tim,

You'll be very happy with that size. My tank is also 52", and that leaves enough space to run an underfloor electrical conduit.
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Old 10-05-2006, 10:28 AM   #63
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Thanks Don,

The electical was something I had not even considered, but mysterously planned for :-)

Probably try and get this thing ordered today....
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Old 10-09-2006, 01:11 AM   #64
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Hi Folks, Great tread! I'm doing all the research I can on black and grey tanks. I have neither in my 58 Traveler. I hope to add them in the near future. One question, is it "normal" to have the black tank above the floor as in your drawings? I thought the idea was to drain the black tank and then flush it with the contents of the grey tank. I only will be plumbing one toilet and one sink.
Thanks in Advance for the Responds
Greg
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Old 10-09-2006, 01:57 AM   #65
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Hello Greg ,yeah im waiting on SafariTims setup to be done so I can get the grey in our 60 trdwnd .The black tank is suppose to be on the top of the floor
in the early trailers ,the dump valve drained the black thru a slide type brass
valve and the shower and sink went into the lower part of the valve as just an exit point to one sewer hose connection outside of the trailer .You can leave the black where it is as Tim and others have done and install a grey in between the frame rails ,or reconfigure the whole thing to a different setup.

Scott of scottanlily
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Old 10-09-2006, 07:53 PM   #66
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Quote:
Originally Posted by 60's Iron
... One question, is it "normal" to have the black tank above the floor as in your drawings? I thought the idea was to drain the black tank and then flush it with the contents of the grey tank.
yep.."normal". they put the tanks ON the floor on some models to this very day.

the idea of flushing the gray tank second is to rinse out the slinky hose, not to flush the black tank. Not that there wouldn't be anything wrong with flushing the black tank with grey water...just that there isn't generally enough room to have so many tanks stacked on top of each other so that gravity can do this. Some people have installed a complex system of pumps and so forth that allow grey water to be tranferred to the black tank. I like the idea of letting gravity do this very important task. it almost always works.
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Old 10-09-2006, 09:30 PM   #67
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Quote:
Originally Posted by scottanlily
Hello Greg ,yeah im waiting on SafariTims setup to be done so I can get the grey in our 60 trdwnd .Scott of scottanlily
Got the tanks ordered. They should be here in the next few days. I'll get a photo up when it does!
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Old 10-10-2006, 10:51 AM   #68
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Hey guys, while I'm waiting for my tanks to arrive, I've been thinking about a tank monitor.

I did not have a usable one on the '71 Safari I had, so I figured they did not work too well and probably not worth drilling holes in a new tank for.

However I came across this Snake River system that does not need holes in the tank. It uses capacitve measurment with sensors on the outside of the tank. Pricing is not too bad either.

Any one fimilar with this system or have a different one to recommend?

Also, giving thoughts to a black tank flush system that you drill into the tank and have an external water inlet for it. Pros - Cons?
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Old 10-10-2006, 11:02 AM   #69
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Tim -- Questions:

where did you get the tanks?
size?
cost?
custom, or "stock"?
how are you going to mount them?
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Old 10-10-2006, 11:42 AM   #70
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Quote:
Originally Posted by chuck
Tim -- Questions:

where did you get the tanks?
size?
cost?
custom, or "stock"?
how are you going to mount them?
Chuck,

I ended up ordering them custom made from All-Rite. The measurements are shown earlier in the thread, but the grey tank is about 28 gallons.

I'm also having a new black tank made it will be around 20 gallons.

The regular cost is around $380 each plus $70 shipping for both.

The black tank sits on the floor so that's an easy one. The grey will be under the trailer between cross memebers. I'm still devising a mounting plan now, but so far I'm going to bolt some angle brackets to the lower part of the crossmembers then after the tank is in place run some straps across the bottom to hold it up.
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