for some reason or another, my dump valve sticks every 5th hit or so. it really sucks to, the other day, i aired up the front some goin down the interstate, i was crossin a bridge at about 80mph and it got doin the boat thing (rythem of a boat hittin waves...) and so i aired it up to stop it, and when i went to let the front down some...bam, dump valve stuck open and i was draggin the front like hell........ the people behind me freaked and slammed on breaks....i had a nice distance from my tailgate to the next car after that... oops. anyways, i took apart my switch box to make sure my connections were good, looked at my valve wiring and it all looked good. im wondering what cause this? i have single pole push buttons from radio shack. (2 buttons for front, 2 for back, ones fill, ones dump, button only controls one function). anyways, im not really sure what to check for next, any help would be appreciated. thanks.