I have been using poly camlocks in misc ways for my soft wash set up. I’m curious what kind of connectors others use for dependability and maximum flow.
Very interested in this myself, staying tuned to see what the pros say 
Same - I use poly cam locks for my 5/8” hose setup. I use it for roofs and pre/post treatments. They seem to do well and I haven’t noticed any restriction. I can shoot about 45’ with a 7gpm Delevan 100 psi pump using a 3/4” Proportioner.
