When we rinse I actually prefer an open water hose with no nozzle IF you can walk the roof and rinse from the top down. If you rinse from the ground, yes, a water hose with nozzle.
Hey Scott! Garden hose huh? Well we here at Gutterdogs believe ya need a lil more than that. we use special tips, jacks the pressure up to 4000 psi, yea!!!! BABY!! There are plenty of granules up there. WTF! It aint my roof!!! lol!!! Just messing!!!