I can't really comment on pressure as honestly I never thought about it until you brought it up. The float is adjustable almost 90 degrees straight up. This is for what I'm calling my prep rez. My water source is all the way on the other side of the basement and I got tired of wheeling all the way over there and sloshing water everywhere and shit. I'll run a pump from there to my root rez.

What are you guys using to support that much weight up high ?
my small rez's are 18 gallon 150 lbs full. The big ones I want to switch to are 30 250 lbs. full.