| Author | Message | ||
| captain ron (Captain_ron)
Rating: |
does anybody see a problem with 170 gallons fresh water 65 gallons black and 65 gallons gray in one bay? weight wise? I also plan on putting gray tank above black so water can be diverted to black after dumping to help flush it out good | ||
| RJ Long (Rjlong)
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Shouldn't be a problem at all - you're not going to have 300 gallons all at one time anyway, are you? But a thought - if you have 170 of fresh, don't you think you should match that total with the grey/black? And why not just one grey/black tank - much easier to deal with come "dump time", as most stick 'n staple rigs do. FWIW, RJ PD4106-2784 Fresno CA | ||
| H3-40 Rating: N/A |
I used a single Grey/black fuel tank in my coach but we all know that's a different story! It cleans out good and thorough when I dump it! Having a seperate tank means more plumbing and more valves which ultimately, takes up more space! Yuck! Ace | ||
| dug Rating: N/A |
I have 3 95 gallon tanks in one bay. I've never had any problems with weight, but I've never had them all full at the same time. Usually fresh or grey full, with no more than 30 gallons in black. Dug 75 MC8 Arcadia, FL | ||
| Richard Bowyer (Drivingmisslazy)
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I had three 70 gallon water tanks, two 70 gallon grey tanks and one 70 gallon black tank in one bay. Of course, this was in an Eagle so you can expect more. LOL Seldom if ever was more than three tanks full at the same time. If I was doing it now, I would combine the black and grey for one tank only or at least all three connected together. Richard | ||
| Don/TX
Rating: N/A |
Ron I would chime in to highly recommend the "single tank" for grey/black, think it would sure work out best for you. Something somewhere in RV code I think says you should have that grey/black tank hold 15% more than the fresh if I remember correctly. Something to think about for sure in case your kidney output plus the fresh overloads you. I made 120 gallons fresh, and would not do that much again, just never needed it, but ran thousands of miles full of fresh. Your uses may be different, but hauling dead weight costs you know. By the way, where ya at now? | ||
| captain ron (Captain_ron)
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thanks Don, Still in wisconsin headed to Murfreesboro, Tennessee today. Acouple reasons I like seperate tanks is I can dump grey tank any where if need be but not black. and If I'm full and both tank are combined and I cant find a dump station I'm screwed | ||
| Dale MC8
Rating: N/A |
"I also plan on putting gray tank above black so water can be diverted to black after dumping to help flush it out good" If you plan on stacking these tanks you might run into trouble with the stress of a fullish tank compressing a less full tank. Putting the tanks side-by-side with a 3-valve drain system (one for gray, one for black and one for dump) would allow you to open the black and dump valves, then close the dump valve and open the gray valve to divert the gray water into the black tank, then open the dump valve to empty everything. Also, an overflow fitting between the black and gray at the top of the tanks would allow extra gray water to run over into the black (and vise-versa, but usually there is more gray than black) and dilute it for a cleaner dump. The way I plan to do it....YMMV Dale MC8 | ||
| GABBY
Rating: N/A |
i HAVE HAD BOTH SYSTEMS. THE 4905 HAS 3 TANKS. A FRESH,BLACK AND GRAY.THE BLACK AND GRAY HAVE A CONNECTION AT THE TOP SO THE GRAY CAN DUMP INTO THE BLACK. THE TANKS ARE 100 GALLONS ON BOTH COACHES. IT ONLY HAS A 2 VALVE SYSTEM. IT IS EASY TO DUMP AND CLEAN THE BLACK TANK BY RUNNING THE GRAY INTO THE BLACK TANK BY HOLDING UP THE DUMP HOSE WHERE IT CONNECTS TO THE TANK. . ON MY 102A3 I ONLY HAVE A FRESH AND A BLACK/GRAY COMBO. THIS SYSTEM IS HARD TO CLEAN THE TANK. I WOULD GO WITH THE 3TANK SYSTEM IF I HAD THE ROOM. CROSSOVER LIKE DALE MC8MENTIONED IS GREAT ALSO. | ||
| Richard Bowyer (Drivingmisslazy)
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snip "A couple reasons I like separate tanks is I can dump grey tank any where if need" Ron, 30 or so years ago, this may have been so and I used to do it myself in the old days. I believe you will be hard pressed to find anyplace today where you can legally dump grey water anywhere other than where you can dump your black tank. All it takes is a little planning. Richard | ||
| sylverstone (Sylverstone_pd4501864)
Rating: N/A |
i've got a scenicruiser, so my bays are, well, you can put a car in them  ... anyway, before you do anything, it's a good idea for you to go read through this: http://www.gumpydog.com/bus/MC9_WIP/Plumbing/Holding_Tank_Fabrication/holding_tank_fabrica tion.htm he's got a really solid article there. the system i'm putting in my cruiser is basically going to be set up for boondocking for a week, for two people. there are two events a year where we double that, but they have showers, so i will, mosty likely, bring along 2 of those 5 gallon water bottles from lowes and call it a day. because of size restraints, i'm going to be a bit sparse on the water, but i've got a bay car to run for more if i have to. gumpydogs numbers work pretty well, but i didn't want to give up that much weight and space. (his numbers are 4 people, 7 days @ 5 gal per person per day = 140 gallons. he figured 155 gallons for wastewater. i settled on 100 gallons fresh water, 115 gallons waste, as a ballparks this season we're going to actually track our freshwater useage to see if this is a real world number or if we can scale it down. (i have a feeling we may end up with half of it) the waste tanks are going to be separate black and grey water. where we go there are usually bathroom facillities, and the sites are large, so the bathroom in the bus won't be used as much as you would think. so i feel a 40 gallon blackwater tank is fine, leaving 70 gallons of greywater capacity. the cruiser has a depressed walkway front to back on the centerline of the bus that means i cannot use a flat wide tank at the top of a bay, so my freshwater may end up being double vented at the top, and a "U" shape to fit in that space. tanks can get heavy, so they should be as low as you can get them in the bus if at all possible, withough being horribly annoying (a 4" high 4' x 8' tank that makes the bottom of a bay is annoying). i can put my under the bed, or in cabinetry, etc., but on my bus all of that is pretty high up, and it's just not very good engineering. 700 lbs of water *will* effect how your bus handles. i was originally going to make all the tanks full width of the bus, minus half an inch so they aren't rubbing the bay doors. the width of the tanks, and height of the tanks (as seen from the side) have yet to be determined because i have to go measure it again, and i was going to fidget with the numbers until they lined up flush, so that i could put a flat wall in to protect them from anything thrown in the bays. basically "as wide as i have to make them, at this ratio, to make them fit" (i am really trying to do this rig in a manner that will allow me to keep both cargo bays empty) the blackwater tank on the bottom, geywater on top of that, fresh water on top of that. the plan is to build the tanks, and put in a slide valve between the grey and blackwater (the grey/blackwater will be made in two peices, and then be welded together, with a routed out space to slide the valve in, then bolt it in from the inside, so i'm not wasting space on tying the tanks together, but i can still use a valve) on the bottom of the blackwater, on the drivers side, will be a slide valve (installed the same as above) with a fitting on it for a dump hose. on the bottom side of the greywater on both sides, in the engine compartment (other side of the bulkhead) will be 2 greywater drains. the connectors will be basically really big versions of air compressor fittings. (so i can snap in a hose if i can dump grey where i am, from eithier side) in these locations will also be a line (on either side) that run all the way to the roof for venting. they vent the top of the blackwater and the top of the greywater together, so if my greywater gets full it will overflow down the vents into the blackwater. this is on both sides so it will still work if the bus isn't level. i doubt i'll ever use the greywater drains, which is why i'm putting them where they are (i have no need to give up useable space for them, and they're still easy to get to, but i know i'll want them if i dont have them. basically the method is hook up the dump hose, open the black valve, then open the grey valve to flush the black tank. i may or may not put in a spraybar to allow me to pressure flush the tanks.. (1" tube across the top of the tank with holes drilled in it) that *was* the plan. however, i've been looking at a webasto and designing out the heating / ac systems... and i really don't want to give up bay space unless i have to. the scenicruiser has a pretty good sized bay under the stairs that has the heater core, ac core, factory restroom tankage, and a big empty air space in front of and behind it. if i use that bay for it, i'll be keeping the tank ratios the same and making them as big as i can get in there. i can run the plumbing down the drivers side channel that has the shift linkage in it currently. it's eithier that or i put batteries in there, and i really didn't want a 35 ft run of 4/0 from my alternator to my battery bank, although it's a really good place otherwise. maybe the generator and the webasto, but i'd like to keep those near the engine compartment... there is a goodly amount of space on either side of the engine compartment in the back that i can use if i get creative, but on the cruiser that section hangs from the roof, and it gets really warm... so it's not a good place for tanks or batteries unless i heat shield them. one thing i am going to do is to use a router and do a zig zag across one side of all three tanks, inlay a water line, and double layer that side, (non bulkhead side) a thermostatically controlled water line off the webasto seemed like a good idea, so that the tanks wont freeze. make the thermostat close at 40 degrees f, otherwise stay open, so i don't cook the contents of my tanks, but they won't freeze either) (there was a copper line in my cruiser from the engine for this with the stock system) the best advice i can give is come up with a plan, and post it here and ask "what's wrong with it" and try not to take it personally -dd | ||
| ChuckMC9 (Chucks)
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The rumor is that Greyhound transported DD engines in the luggage bay. How much weight OK for a single bay? +-1,400 too much? | ||
| J.L.Vickers
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Not a rumor it's a fact Greyhound did transport engines in the baggage bins on the Scenicruisers. jlv | ||
| John Jewett (Jayjay)
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My plumbing code knowledge is rather limited, but the EPA states the you may not dump water that contains "surfactants" (e.g. soap) any place except at an effluent treatment facility. On an inland waterway it carries up to a $25,000.00 fine. Done alongside County Road Thirdly Nought I have no idea. As with so many things in life, don't break the Eleventh Commandment! Cheers...JJ | ||
| FAST FRED Rating: N/A |
Or as the cruising sailors say , Leave a Clean Wake. FAST FRED |
