The Cat one you can run over the top or under and in. If you run under and in you need to run the bucket on the floor so generally we just use that function at the end for picking up small heaps. Long runs over the top works far better as you can carry the bucket. Two considerations, they eat brushes pretty Quickly, and you might want to consider a kerb brush attachment.
you lads wanna hope that neither of your 'significant others' look in here
motor should have a cross line relief valve in the lines to cope with when the P flow is stopped or it'll try to stop dead ... and won't like it ... can improvise one with a couple of Tees and a non return valve between the tees, same as a flail motor
Generally all brushes stop dead so when you pick them up tish isn't flying everywhere
Metal plastic metal ...... slows the wear down plus the metal ones helps stubborn dirt lift better
Already run metal and plastic mixed. I’ve run all plastic in the past and the wear isn’t noticeably different, but as you say the steel do lift packed mud better.
That answers my next question which was what is this thing I thought it might be a relief valve of some sort
can you put up a more general/broader field of view pic please ... looks like a CLRV .. weirdly plumbed though
.. but can't see what's on the ends of each line
Think mines a Stricklandlooks to have a very similar CLRV to the one @heritage machining has put up
