102D3 waste tank selection

[freds]

Treatment plants use the digester system there is no Oxygen or air present to do the bio break down then they use the bio gas to complete the process,that process would be tough to do on a bus

Ah but if it was methane digester it could help get you down the road LOL!

[chessie4905]

another subject with over thinking. Mount the tank, vent through the roof. Next subject.

[sledhead]

another subject with over thinking. Mount the tank, vent through the roof. Next subject.

x2

[Jim Blackwood]

Not really. A secondary vent can make the difference between making bad gasses and not making them. Like everything else on the bus, thinking through the consequences of your actions can have a fairly dramatic effect on your comfort level later on.

Jim

[chessie4905]

how about a charcoal filter or compress it and feed to engine on highway.

[RJ]

Bustle -

My MCI had a single, 100g grey/black tank that was oriented E/W along the back wall of the rear bay, offset to the passenger side, as the compartment was shared with the genset on the driver's side. (Drain line ran thru the genset sound box!) Anyway, the 1-1/2" vent for the tank came out the top curbside rear corner 2" into an elbow pointed at the curb, another 2" length of pvc, then into an elbow pointing to the rear of the coach. From there, another short piece of pipe took the vent line thru the rear bulkhead into another elbow pointing down, with a final piece of pvc, this one cut at a 45º angle facing backwards, that ended just slightly below the bottom of the floor. In the four years and 45K miles I owned that bus, only one time did we ever smell anything around the vent's exit. However, we would get the stink when flushing the toilet sometimes. This tank, like most others, got it's fresh air thru the kitchen, bathroom and shower drains.

My current coach has 60g black and 90g grey tanks. These are both vented thru the roof, the one on the passenger side is for the grey tank, the one on the driver's side is for the black. The curb side vent goes up in the back of the washer/dryer closet, the black tank vent goes up thru the back of the bathroom vanity and medicine cabinet, adjacent to the ducting for the galley's CruiseAire A/C. Like the MCI, the grey tank gets it's fresh air from the sinks and shower drain, whereas the black tank gets it's fresh air from vents cleverly concealed by the bay handles on both sides.

FWIW & HTH. . .

[RJ]

In our original floor plan the RV type toilet was going to be right above the bay. Since we got a 40ft bus instead of 45ft bus as planned we had to re-do the floor plan. We have to sets of bunks, another single, and a pull out couch. Enough sleeping space for 7.

Bustle -

I have friends with a 40' Eagle that sleeps 8 - Mom & Dad in the back bedroom with an E/W queen bed, three sets of two-high 6'6"-long bunks along the passenger wall with storage drawers at the bottom equivalent to another bunk height, a full bathroom on the curb side with the galley in front of the bathroom. There's a jack-knife sofa behind the driver, a copilot seat and a dinette round out the curbside interior. They lived in the coach full-time, home-schooling along the way until the two oldest (twins) graduated from high school. Now they're in a stick 'n brick abode, and the Eagle is just used for weekend getaways.

All that to say that with a little careful planning, you can set up a 40' coach for a large family and still keep the toilet right above the black tank, thus reducing the risk of a crappy situation if the plumbing from the back wall of the bus to the tank develops a leak!

FWIW & HTH. . .