Looking to get a coiled hose for my 22' walkaround. Never had a raw water pump before (Jabsco 32605-0092 3.5-4GPM 60psi). How much difference is there between 3/8" and 1/2" hose over 15' with my pump? Not sure if I should go to the 1/2" for an extra $20 and if it will make a noticable difference in pressure/volume. Don't mind the $20 if it makes a noticeable difference. Main use will be to wash of shoe muck and fish blood off the deck while on the water (ocean). I imagine 15' is long enough as I don't really see me needing it for the bow area, just the deck space. Harbour Chandler carries the Camco nozzle and the Shurhold nozzle. Either of them any good? Thanks.