CAUSES OF INADEQUATE PRESSURE INCLUDE:
WELL DEPTH:
If you have a shallow well, a deep well will probably solve the water shortage problem. If the
water-yielding capacity of the aquifer (water-bearing stratum) is less than your demand for water, install a storage
tank
SIZE OF WELL CASING:
If you have a large pump on a small diameter well and the water output is slow, then
possibly your well diameter is too small.
PUMP NEEDS REPAIR OR REPLACING:
Keeping equipment in good repair will assure an adequate water sup-
ply at all times. Often screens, foot valves, jets, etc, plug up after use
SIZE OF PUMP & PRESSURE SETTING:
Before replacing your old pump or installing a new one, determine
your exact water needs, then select a pump based on that determination. One rule of thumb for estimating water
requirements in the home is that you need a gallon-a-minute capacity for every water outlet—faucet, sink etc.
DISTRIBUTION PIPES TOO SMALL:
Long lengths of pipe and many pipe fittings can greatly reduce the pressure
at distant locations from the pump. Running a larger, new line to a distant location of high water demand will solve
the problem.
Consult a trusted well driller or plumber if you suspect any of the above problems.
Table 1
VP1 VALVE CAPACITIES
Gallons Per Minute
PSI
VP1-14
5/32” Orifice
VP1-6
1/4” Orifice
VP1-7
3/8” Orifice
20
2.44
3.70
5.00
40
3.70
6.25
8.33
60
4.55
7.69
9.62
80
5.00
7.94
9.60
6
