| Author | Message | ||
| T. (Bluegrass)
Rating: N/A |
can someone please tell me if it is possible to run the breather pipe for sewage into the refrigerator breather. Thank you Tony | ||
| John that newguy Rating: N/A |
EEEEYYYYOOOOOOOOOO | ||
| John that newguy Rating: N/A |
Actually, the vent can go any way you desire; it's your coach... I would be wary of methane gas and the heat from the fridge chimney... it could result in a real messy situation.. The real problem, may be with the sewage venting not being exhausted into the atmosphere directly, and instead being pulled into the air intake of the fridge burner... BOOM-SHIT The chances are remote, but possible. | ||
| Brian Brown (Fishbowlbrian)
Rating: N/A |
If you're talking about the big cap that goes over an RV-style 2 or 3 way fridge, I think it's fine to vent in there. In houses where they want to keep the rooflines nice, they'll sometimes gang up all of the stacks and run them out a big vertical chimney. I guess it would avoid another roof penetration and possible leakage spot. Just terminate the plumbing vent as high up as possible near the cap. If you find it's not drawing well (odors), you can always penetrate the cap and put a tee on the vent. BB | ||
| Rodger in WA Rating: N/A |
This may invite some flak but it works fine: My, converted before I bought it, Prevost Champ has the black/gray tank vented through the bay floor. The vent pipe is 1/2" Sched 40 PVC, exiting the top of the tank with two 90's directing it down through the floor. There's a tee fitting at the exit end, aligned fore and aft, which possibly produces some venturee action and generates negative pressure in the tank when underway. Never have I noticed a noxious whiff either inside or outside the coach. In the event the waste tank ever overfills, the overflow would spill on the ground, not in the coach. Were I doing a conversion, I'd probably vent through the roof but if any question existed, I would not hesitate to plumb it through the floor. | ||
| Cliff (Floridacracker)
Rating: N/A |
Just thinking out loud, What if if you did what Roger has but added the normal through the roof vent. No chance of over fill and an interior backup! Would the lower vent create a venturi effect and pull the gases out better? Disclaimer: I realize that code may forbid this as turning could cause a raw sewage overflow on the ground. But, what if? Cliff 75 4905 | ||
| James Maxwell (Jmaxwell)
Rating: N/A |
Rodger, no flak, but the idea of going up thru the fridge compartment is far better and more sound than you're arrangement, which defies and defeats the purpose of the vent in the 1st place. But, your lower-than-source vent is not the only one out there like that. A thread on this subject here abt. a yr. ago left me amazed of the number of people that simply don't understand the principles behind the vent. Your's is not only routed incorrectly, but it is also grossly undersized, appropriate for a 5 gal. bucket maybe with respect to the size. I know that everyone who has this expediant arrangement insist that it works fine but I have been around a couple of coaches with it and u can definetely tell it, irregardless of their claims. Last yr. while on a long trip, as an emergency measure where I could not conveniently reach a clamp sleeve-coupling fitting that had slipped, I ran a 3/4" vent line into the rear wheel well. It got the gases and odors out of the coach, but it also enveloped it when parked. It quickly moved to the top of the "fix it" list. I don't see the methane as the major problem, but rather, the noxious odors. Quite frankly, I don't know know how much methane is produced in say a 90 gal. tank and I don't know if it could be accurately calculated, given all the variables, but I do know that a quick "sniff" assessment reveals the odors. Do it your way though; but pls. park down-wind of me. | ||
| James Maxwell (Jmaxwell)
Rating: N/A |
Cliff: Depending on where ure coming from, there may not be any "ifs" about it. Unless you're seeking a State Housing Approval, which I doubt, you don't really have a code that is mandatory to you. However, if you were to follow code, it would prohibit the downward, on the ground discharge, of sewer gases, and affluent even more so. Further, I believe that the configuration you have proposed would actually defeat any venturi effect on a normal vertical upward vent. By T'ing down also you present an alternative source for the vent pipe to draw from, rather than just the tank. This is exactly the problem presented with a dry or open trap. | ||
| Pat Rating: N/A |
Has anybody ever tired running a small tubing about a 1/4 in. into the engine air breather, from your sewage tank to draw the gases? The reason I ask is I have being think of doing just that. Do you guys see any problem with that? Pat | ||
| RJ Long (Rjlong)
Rating: N/A |
Pat - GMC, MCI, Prevost, etc., all use 2" - 3" diameter flexible duct with a fan to vent the restroom holding tank into the engine air intake. Fan comes on when you turn on the master switch to operate the coach. So, yes, it's been done. But that's with the holding tank in the RR corner of the coach. Most RV tanks are in the last baggage bin, so you'd have some routing issues over, under, around and thru the suspension, etc. And if using similar flexible ducting, any drooping could be a point where gases could accumulate, with potentially disasterous results. HTH, RJ PD4106-2784 Fresno CA | ||
| Jim Bob Rating: N/A |
I had a bus with the vent (1 1/2") coming out of the top of the tank, then going down through the floor of the bay. I can tell you that we sometimes had odor at ground level when parked depending on the breeze . When underway we did not flush the toilet because the area under the bus was higher pressure than the bus interior!!! This is whether or not the windows were open but far worse if they were. Vent through the roof! Jim-Bob | ||
| H3 (Ace)
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Guys my vent pipe comes out of the top end of my round aluminum tank and goes down and out thru the bay floor and then a short pipe directed rearward with a balony cut on the end. Either sitting still or traveling, we have NO stink whether flushing or not! Does this mean I've been eating right Niles? Ace | ||
| niles steckbauer (Niles500)
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Ace - everyone knows your S*** don't stink - LOL - go ahead and make another run for the border - Niles :?) | ||
| H3 (Ace)
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Only if I can use your H3 instead of mine! I'd have a better chance of getting across don't you think?  Ace | ||
| niles steckbauer (Niles500)
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Where do you think I got the paint job? (only 26,000 pesos) - Did I get taken? You can use it if you stop taking it to the Taco Bell drive through - last time you got refried beans all over the push buttons when you tried to cram that 2 lb burrito through the toll window - Niles | ||
| H3 (Ace)
Rating: N/A |
Is THAT what that was? A Burrito? I thought it was the order taker! Ace |