[b]Hi: I've tried everything from disconnecting the hose to roll over valve as well as cutting off the 1st 1/4 inch of the vent tube only to find maybe a 1/32 inch hole and then bending the tube straight to drill through the secondary I was told, and it all still hasn't helped. My tank the other night started to implode until I removed a major vacuum gas cap which got rid of the dent. I guess the clog must be seriously deep inside the vent tube breather line. Couldn't even blow through it with a compressor...go figure. Anyways, I'm gonna give this a shot because that was my last alternative was to have a vented gas cap. Maybe now, I won't have no problems if I do this right. Thanks, I'll let you know how it goes. I look at it like this....If I go down with this thing, unless I'm crawling, I'm probably history anyways...LOL.