The Pneumatic Tanker Thread

Had the pleasure of picking up this brand new set today that'll go into our small fleet. Too bad they won't be mine.

 

I tell ya... The view sure was nice looking back in my mirrors. I felt pretty darn cool rolling down the road with those behind me.

 

Yowsers! That looks messy. I would've freaked out to have my truck so dusty

 

Had a weird situation on Friday evening. Unloaded into an old Guppy/Pig that had a broken vent hose line. Normally the hose coming out of it has a 3" male fitting that can be hooked up to the silo to vent out. The hose had one of those windsock deals on the end to catch the pressure. Well.... Because of the poor ventilation, I was left after the unload with almost 10 psi of back pressure left in the tank and the line. I had it happen before and when I went to take off that hose... I had to put my whole body into it and brace for impact. I took it off and crimped the hose before it blew out all of that pressure. Accident waiting to happen- I like having front teeth... Long story short I tried something. I shut down the PTO after unloading and let all of that tank pressure drain through the blowdown valve. I then opened the line valve to allow all of the back pressure to come through the tank and drain out through the blowdown. When the hose was close to flat I closed the line valve and took it off. The back pressure before that made the hose fully expanded and you could stand on it and it would support you!! Way too much back pressure to take off safely. I was worried about product coming back and settling in the tank but on the next load my tare weight was the same. Obviously this is a temporary solution until that vent line is fixed but would this really cause any damage? It's just air. I have dome lids that are sealed by air lines. I can't really see that being a problem. What about back pressure going through that line valve ?

 

Thanks for the info! I didn't think it would but I had to ask. It's not a routine occurance so the other couple of drivers weren't sure. I'm just glad I still have teeth. Looking good up in Spokane my friend. I'm starting my countdown haha