I've heard of people using bog brushes - nothing to scratch and cheap,!
Agreed. I don't see continuously running water useful at all. A normal wheel brush for a few pounds is all you need. Agitate the dirt and then a quick rinse with a hose.
never used one of these but can imagine it's more trouble and less effective than using a normal wheel brush (not attached to hose or pressure washer)
Don’t bother by wheel wollies or EZ brush - will save time Money and won’t damage your alloys
Bit like the ones for the crappy foam lance, give it five stars and then show pictures of watery nothing running off their car.