isdeleon
+1y
---------------------------------------------Originally posted by idrgbdy^^^ what would be the need for that first fill vave? fill all 4, if it's connected to all the other 4 fill valves?---------------------------------------------It gives you control over each bag, but you can't raise and lower at the same time. You can either raise 1-4 bags or lower 1-4 bags. To raise it, the fill valve will open and the valve that is next to the bag or bags will open. If you want to lower it, then the dump valve will open and the valve next to the bag or bags will open. You can't have the fill and dump valve open at the same time because it would just dump the air.