B+ motorhomes
I just bought a Trail Lite B+ 211s with 8.1 Chevy engine. This is my fifth motorhome (others range from an old 20' Vagabond, and three Winnegagos, from 19 to 32'. This vehicle is fantastic. I am...
Forum Discussion
Burl, the only thing that bothers me about that theory is the effect of the rain cap on the vent pipe.
As I'm sure you know, the purpose of the vent pipe in a house is to allow Mama Nature to exert her 14.7 lbs/sq/in on the fluids in the system. This also prevents our black and grey tanks to become pressurized, allowing the free flow of liquid.
Now, from what I know based on my 'wannabe engineer' background, the venturi and Bernoulli's principles, would, I believe, state that in motion, there would be negative pressure in the vent pipe. But this might change if there is a rain cap on the top, possibly resulting in little pressure effect on the fluid or vapors in the tanks.
As for checking your vent pipe, if the cap is removable, maybe send a small shop vacuum hose down the length BEFORE hitting 'liquid' and see if there is blockage? Birds will try to build nests in the most unexpected places!
Rodger, tho' I'm sure you can quote many topics covered in this thread (which maybe should be its own forum) that were somewhat better somewhere else, the fact that so many of the responders are B+ owners helps keep the specificity of these topics within our group. In addition, you of all people know quite well how frequently this thread had long 'stretches' where a number of us, myself included, exchanged volumes of info and advice on which vehicle/mfr would be the best for our specific needs. The number of B+ type vehicles available seems to have increased, which makes this very long running thread that much more valuable. Besides, class C's as a group are different than B+'s, being much more massive in most dimensions. Perhaps we are a vehicle type without a good name. How about "Wannabe Chinooks"? :);):B:W
As I'm sure you know, the purpose of the vent pipe in a house is to allow Mama Nature to exert her 14.7 lbs/sq/in on the fluids in the system. This also prevents our black and grey tanks to become pressurized, allowing the free flow of liquid.
Now, from what I know based on my 'wannabe engineer' background, the venturi and Bernoulli's principles, would, I believe, state that in motion, there would be negative pressure in the vent pipe. But this might change if there is a rain cap on the top, possibly resulting in little pressure effect on the fluid or vapors in the tanks.
As for checking your vent pipe, if the cap is removable, maybe send a small shop vacuum hose down the length BEFORE hitting 'liquid' and see if there is blockage? Birds will try to build nests in the most unexpected places!
Rodger, tho' I'm sure you can quote many topics covered in this thread (which maybe should be its own forum) that were somewhat better somewhere else, the fact that so many of the responders are B+ owners helps keep the specificity of these topics within our group. In addition, you of all people know quite well how frequently this thread had long 'stretches' where a number of us, myself included, exchanged volumes of info and advice on which vehicle/mfr would be the best for our specific needs. The number of B+ type vehicles available seems to have increased, which makes this very long running thread that much more valuable. Besides, class C's as a group are different than B+'s, being much more massive in most dimensions. Perhaps we are a vehicle type without a good name. How about "Wannabe Chinooks"? :);):B:W
