PRIVATE WATER SYSTEMS - Piping - Layout - Procedure
Step 1: Make a sketch of the buildings and grounds showing
approximately where each building is located in relation to the others.
A sketch made to scale is the most useful.
Step 2: Measure the distances between buildings as well as building
widths and lengths, and record the dimensions on the sketch.
Step 3: Show the water demand at each building and hydrant in the
sketch.
Step 4: Draw a double line from the pump house to the location of
greatest demand, and label the double line "A". In this example, the
home has the greatest demand.
Step 5: Place a double line to the next closest major demand from
either the pumphouse or the proposed pipeline labelled "A". Label this
latest double line "B". Since the milking parlor and the milk room location is the
next closest site of major demand, "B" goes to it. If "B" goes from the "A"
line, the garden hydrant can be supplied enroute without extra piping to serve it.
Step 6: Draw double lines to the next closest location of
major demand. In this example, the next closest major demand location is the barn,
then the poultry house moving to the left of pipeline "B". This is labeled "C".
In the opposite direction from is the hoghouse, then the machinery storage
shop. Extend double lines from "B" to them, and label them "D".
Step 7: Draw lines from line "A", "B", "C", and "D" to any
other water use locations.
Step 8: Check layout for ease of installation and maintenance (topic sketch).
This is just preliminary layout. Suppose the drive to the
house is paved. To avoid cutting through so much pavement, line "A" could be
lowered on the sketch from its preset location to one where it would
miss most of the paved area.
At the same time, to avoid cutting the paved section next to the
garage, one consideration would be to run pipeline "B" from the pump house to
the general vicinity of the garden hydrant and the pipe connection to the
swimming pool.
With the first layout there would normally be a cutoff valve
at the pump house where it serves pipeline "A". If, for any reason the
"B","C", or "D" lines needed to be repaired, the one valve would discontinue
service to the home and all the rest of the buildings. Therefore, a cutoff
valve on pipeline "B" is desirable. Cutoff valves on other branches can be
justified depending on how important an interruption of service for up to several
hours would be for any one building.
With the layout in which there is a line "A" from the pump house to
the house and a line "B" from the pump house to the milking parlor and milk
room, a cutoff valve, at the pump house, for both "A" and "B" would give the
added advantage of being able to turn off water to the service buildings while
leaving service to the house on.