We have been using a Delavan Fatboy for the past 2 years and the 5850 for the 2 years prior. We've had great luck with both pumps and are happy with the performance. I am considering buying the Flojet Pentaflex because of the internal bypass and the ability to use smaller nozzles.
We have All-Flo KYN EPDM 3/8" model AFKE038B3 with 200' 5/8" Kuri Tec hose on a Titan TT4318S hose real that I purchased from you. This is powered by a twin cylinder air compressor electric start, gas engine with 60 gal tank storage tank capacity that we operate at a constant 80psi.