1. Dig hole for stand pipe approximately 2 feet in diameter and deeper than the bury depth.
2. Flush gravel, debris, etc. out of the supply line before connecting stand pipe.
3. Install stand pipe with drain hole below frost line. Use wrenches on supply line fitting and brass valve body only. This avoids over tightening the hydrant assembly which could affect operation.
4. If supply line to the stand pipe will not support stand pipe, use re-bar, length of pipe or other suitable support driven in bottom of pit to help support stand pipe. Before filling excavation, turn on water and check stand pipe connection for leaks.
5. Provisions must be made to allow the water to drain from the stand pipe drain hole each time the stand pipe is closed.
a) Fill bottom of pit with 1/2" gravel to a minimum of 3" above brass drain valve body, to insure adequate drainage.
b) If the stand pipe is installed inside a structure or concrete driveway, connect copper drain tubing to the 1/8" NPT drain hole and dig a remote drain field outside the structure for the drain pipe to empty into. Without this remote piping drain field, the water from the stand pipe drainage may percolate up to the surface around or near the stand pipe and will damage the floor surface or cause muddy areas around stand pipe.
c) Saturated ground in the stand pipe drain field can prevent the stand pipe from fully draining and may result in freezing. If the area where the stand pipe is located is low lying or has a tendency to have standing water, a larger drain field or pit may be required to provide the stand pipe a place to drain.
