Jerry, what is the smallest angle nozzle that this SC can use without leaving an uncleaned area between the two spinner arms? Can zeros be used?
This is a good question Nigel.
I Looked into this some time ago when we thought of merging our Turbo Twisters together. Our solution was to have the first one up a little, ahead of the second one. The second one would over lap by a 1/2 of an inch at 0 degree nozzles.
The other way would be to have a timing belt ( Like a Harley Drive belt ) in play so that the wands are set as to not hit each other during the RPM's. We looked into this, but decided that if the belt was to slip or break, damage to the wands would occur. It would be allot safer just to offset the two Turbo Twisters instead.