Plumbing question

[flamedeep]

Getting to the stage of starting the plumbing process on my bus and printed off the plumbing diagram from above but saw that the vent pipe was not in the diagram. It is my understanding the black water tank must be vented, does anyone have a diagram where the tank vent is shown?

Thanks

[chev49]

All of the tanks have to be vented. Fresh water ones only need something like a 1/4 inch diameter plastic hose. Grey water ones need vented, my commercial tanks have something like a 1" vent hole (which i reduced to 1/2 and works fine), and black water tank has same size vent. You dont have to use rigid pipe to vent your tanks. The fresh water vents should go next to your fresh water fill, and have a screen over them. The grey and black water vents should go through the roof, and you just go buy one of those 3 dollar roof vent caps at camping world for the top.. put screen in there as well. There is no exact place that you need to put the black or grey vents, they can be flexible line to go around obstructions, ect in bus, just vent them through the roof. hopes this helps a bit, rich

[bansil]

sounds well thought out

[ol trunt]

I'm not trying to be a pest but now that you have had a little time to play with your plumbing would you be willing to share the overall success of your design? I'm still trying to design my waste system and I'd appreciate your advice. Thanks, Jack

[ol trunt]

IJ, thanks for the response. I think your alternative plan should work just fine as long as there are no negative angles involved. I would appreciate more info as you progress.

I told wifey of your "first Turd Plan" suggesting that using our first as a Christmas tree ornament might be fun--WOMEN! they just don't get guy stuff

[TheRainbowBoxer]

I would guess she thought that was a crappy idea?

[lornaschinske]

Originally Posted by Iceni John

... PEX is stiffer than I wanted,..

"warm" PEX bends easier than "cold" PEX. You may need to put it in hot water (or tub of water in the sun, let sit for several hours) bend to shape you want and keep in the shape over night. We've laid PEX out in the hot sun on the ground (weighed down flat) to "straighten" the coils out for long runs in houses. It's like bending plastic laminate.. you can only bend it to a certain point and you got to get it hot enough to be bendable without ruining the material. It won't be a fast job. PEX prefers a gentle sweep not a tight turn.

[atcc77]

Originally Posted by lornaschinske

PEX prefers a gentle sweep not a tight turn.

Lowes carries permanent press on connectors, they are made of copper and I believe there is a 90 with a 6" radius. Their brand is called gatorbites.

[nat_ster]

All them "Gator Bites" and "Shark Bites" around here are $7 to $12 each. Why not just get a pair of $50 crimpers and use the $1 fittings instead?

I do in floor heating systems in some of the houses I build, and press on connectors will not pass code in my geographic area. There for I just use the crimp on type for fresh water and heating systems.

Coming from someone who works with plumbing at least once a week, pex is such a god send over copper. Takes about one quarter of the time, no dangerous fire, and no toxic fumes.

Nat

Posted for educational purposes only.

[chev49]

crimpers $30 at the lowes here.