| Author | Message | ||
| L Clinton
Rating: N/A |
title says it all. Larry | ||
| David Dickens (Debdav)
Rating: N/A |
You need a vent above the tank to the outside of the coach, normally through the roof. Then a negative pressure in the vent will always draw fumes and air up the pipe and not into the coach. Some new 'venturi' devices are sold to secure on the top of the vent pipe. Some even swivel to always stay venting. | ||
| R.C.Bishop
Rating: N/A |
2" vent pipe should do it.....as in residential venting and pretty much as described above. Don't know about the swivel, however. FWIW  RCB '64 Crown (HWC) | ||
| CoryDaneRTS Rating: N/A |
Yes YOu have to introduce Bacteria and not use AntiBacterial soaps or chemical smell killers that will kill the bacteria. The Bacteria will naturally breakdown the solids and reduce/eliminate the smell. Venting on top is the typical location. cd | ||
| Jim (Jim_in_california)
Rating: N/A |
Once you have the vent, tie a 33gal hefty bag to it and save up those gasses for a special occasion. Like a city council meeting. Don't bother with a state capital. The stench of corruption is already so extreme nobody will notice. | ||
| FAST FRED Rating: N/A |
AS in most residences the P trap is the king of stench blockers. BEWARE that by using a too small vent setup the holding tank can vacume the water from the P traps while dumping. Solution is to put a cup of water in the shower and sink drains after dumping. Works for me, FAST FRED | ||
| Geoff (Geoff)
Rating: N/A |
Use a house toilet-- it uses lots of water which keeps the smell down so venting is not so important. --Geoff '82 RTS CA | ||
| Vin (Billybonz)
Rating: N/A |
Geoff, does the water stay in the trap while driving? I would think that the constant sloshing of the water would empty the bowl. Also, I'm guessing you are using a tankless type toilet, yes? Vin 73 GMC T6H4523A | ||
| Richard Bowyer (Drivingmisslazy)
Rating: N/A |
There is an overflow trap in the toilet that must be kept full of water also, or do like I did and plug it with silicone. Richard | ||
| Geoff (Geoff)
Rating: N/A |
There is no problem keeping the water in the bowl of the house toilet while traveling, the only problem I have had is water spilling out of the tank on top. For this I turn off the water and flush before moving, but for a permanent solution all I have to do is silicone the toilet lid to the tank top. --Geoff '82 RTS CA | ||
| TWODOGS (Twodogs)
Rating: N/A |
better to flush....all that weight sloshing... | ||
| FAST FRED Rating: N/A |
"There is an overflow trap in the toilet that must be kept full of water also, or do like I did and plug it with silicone." Richard Then of course a leak in the fill valve could pour water all over the coach. Not a hassle if you have fires to put out , but unwise for most. A simpler fix is simply to EXTEND the small tube behind the vent enough to have a U in the line , and fill the bowl to overflow once in a while , usually after dumping to make sure the ventline has water in its new U line trap. FAST FRED | ||
| TWODOGS (Twodogs)
Rating: N/A |
I vented to the engine compartment...never any smell & I live full time..did not want holes in roof | ||
| Marc Bourget Rating: N/A |
Guys, If you strive to control airflow in and out of the passenger compartment I think the incidents of "mala aria" would drop significantly. Ya ain't gonna smell it unless something's pushing the smell out of the tank! | ||
| truthhunter@shaw.ca
Rating: N/A |
I wounder if a used charchol water filter(like from a "brita" fridge water jug pluging the vent pipe end might eliminate odors, once the water drains out they will pass air easiley. | ||
| Jim Wilke Rating: N/A |
Jeeze, you guys must be frustrated engineers. There's enough stuff on a conversion to figgure out without reinventing common sewer plumbing. Just put a vent up through the roof in one of the walls or behind the fridge if you have a propane fridge. You already have a half dozen holes in the roof for air conditioners (maybe 3), vent/fans, (2 or 3), and a fridge vent. If you can't make a 1 1/2" vent stack seal, hire a plumber! The stack will remove smells and EXPLOSIVE lighter than air methane as it does in every building in the country and much of the world. Many years ago there were methane explosions 'till the vent stack system was adopted. Jim-Bob | ||
| Tom Caffrey (Pvcces)
Rating: N/A |
I don't know what you guys have happening, but we get some odor while on the road but never when parked. We recently ran some tests to find out where air was entering and leaving the coach. To our surprise, we found all openings past the driver were admitting the air and the only place that any air seemed to be leaving the coach was around the door. Since this is a high vacuum area, we figured out that the wind noise isn't the only reason that we need to improve the door seal. We also discovered the reason that the rear of the coach got so cool when going down the road. The amount of air coming in through the ventilator in the head made it clear that the vacuum at the top of the vent pipe would easily be overpowered by the vacuum at the door. We'll be working on that seal before changing anything else. I think that is going to take care of our odor problems. For what it's worth. Tom Caffrey PD4106-2576 Suncatcher | ||
| FAST FRED Rating: N/A |
If you look the door itself is vented on an 06. Perhaps a sliding cover over the internal vents (try first with masking tape) would slow the suction. FAST FRED | ||
| Tom Caffrey (Pvcces)
Rating: N/A |
Ours is going around the door, Fast Fred. However, I will make sure about the venting as part of working on the seal. Thanks. Tom Caffrey PD4106-2576 Suncatcher | ||
| Henry R. Bergman, Jr. (Henryofcj)
Rating: N/A |
Yeah, the venting situation does change from sitting at a park/boondocking vs traveling down the road with different wind conditions. Situations WILL occure where the over/under pressure around the soil stack (vent stack) will change, allowing odors to get inside. The "S" trap keeps odors (gas) from getting inside from a basin, head or shower drain. The tank vent keeps pressures (odors) low inside the black tank. If all else fails, and since our coaches are mobile vehicles, sometimes a dedicated muffin fan (sealed?) will create enough of a positive... ...or negative pressure to vent any gases that could get inside the coach while traveling due to weird wind conditions. |