thanks for the word of encouragement. i think i will be fine, the tank was in terrible shape. when i got it had jbweld all over one side and the bottom so i knew it was it bad shape, i used lots of bondo and sanding and smoothed it so that you cant even tell that one side of the tank is 1/4 thicker than the other. its just pin holes dripping and they run to the back of the tank and drip off so i put a funnel and the tank prep bottle there so every 20 mins i go out and top the tank off again. ha its kinda hokey lookin but its working. HC def does the trick it was in for 5 mins and it was clean. there was smoke coming out of the fill hole and thas when i said hmm i shouldnt leave this in here long. nother hour or so and im guna kreem it. wish me luck with this stuff