I used the kit when I installed a pressure tank. I used it since I was in there working on the water system and I needed some additional hoses, so I bought the kit. Between the pressure tank, the hoses and adding extra rubber between feet of the pump and where it was mounted, I now have a very quiet water system.
If you're going to be in there installing the hose kit, you should install the pressure tank since you'll have most of the fittings undone anyways.
Bill
Nodwell RN110 out moose hunting. 4-53 Detroit, Clark 5 spd, 40" wide tracks, 10:00x20 tires, 16,000# capacity, 22,000# weight. You know the mud is getting deep when it's coming in the doors.