I want to install it after the pressure differential valve so the warning lamp will still operate correctly. /QUOTE]
The lamp always works correctly, it's indicating an imbalance..
May I ask what you are trying to accomplish by not plumbing it between the M/C and the PDSwitch.. You do know the switch is self centering (not like some other brands),, so the lite goes out when the button is released..??
The imbalance lite can be helpful in competitive situations, letting you know that the "tap" you gave to set up for a corner "worked".. and if it wasn't enuff,, to give it another "tap"...
hoping to help
There are pretty strong oppinions both ways (before or after the distribution block) and all the manufacturers say specifically to put it after the block.
I think this may be where the OP is coming from.
Still works as one would expect it should between the master and the block.
Also if I remember right, some of the valves don't automatically re center to make the light go off until the brakes are pressed again frimly enought to re center it. (equalize it again)
All this in my own experiences of course, so maybe some differ.
