Actually the pressure requirements are not that high, 15 psig. The
operative variable is volume. Of course volume won't happen without
pressure anyway...
I have found that if the feed piping is large enough, there will
normally be enough pressure to make the S/S work real well. The 1-1/4"
hose is much nicer to deal with than the old "Stinky Slinky", for sure.
Matt