An entire system is filled with liquid.
At the top (30 feet) is a 2 gallon container,
connected to a tube (1.25" ID) for 14 feet,
connected to a tube (1.00" ID) for 10 feet,
then split with tees to 8 valves (.75" ID) and tubing (1.00" ID).
|....|
|....|
|...2.g...|
|....|
.\_..._/...