matthew, i went into pets at home, bought 2 sets of 2 way hagen valves, as they had no 4 way ones,
it was so simple to do, nothing is changed on the brush, all you do is cut the existing hose on the 3 way valve, not the inlet hose, just the 2 outlets, about 1 inch, then ad the 2 way valves, then just ad all 4 nozzle hoses to the valves, easy as that, now only thing you have to watch out for when buying the 2 way valves, they come in left and right, watch you dont buy 2 of the same, its a lot better than the 4 way valve, it looks great very proffesional,
added bonus, you can control the flow to