That's cool! Maybe I could mount one on the dash, ha ha.
It was ~$80 at HF. It's a common design and the welds look good. (I initially bought essentially the same jack at my local Sears but it was DOA due to a stuck release valve - wouldn't go down) It's rated at 1500lbs so not even close to the limit with what I am lifting. There is an automatic support arm that won't let the jack down unless you release it.Where did you purchase the jack ? Is Harbor freight to cheap to trust ? I would use blocks after raising to be safe
HDPE tanks weigh 15 lbs each empty.