Im pretty new to the ss car wash world and slowly working on upgrading a lot of the aging components. when i purchased the wash i noticed that each foam brush line had a solenoid in the equipment room and then an addition solenoid in each bay where the air and chemical lines meet. to me this additional solenoid seems redundant. is there a better way this could be set up? additional my wash doesn't have any low pressure functions. i would like to change this but im having trouble figuring out how to run the low pressure functions into the high pressure line. is there a manifold that works well for this application and does each low pressure line need a solenoid in the bay like the foam brush? sorry for the newbie question. i tried searching around and really couldnt find a straight answer. thanks in advance!