Wayne CWS Serie Instrucciones De Funcionamiento página 3

PIPING
Piping may be copper, steel, rigid PVC plastic or flexible polyethylene
plastic.
Flexible pipe is not recommended on suction
pipe (inlet pipe).
The pipe must be clean and free of rust or scale. Use a pipe joint
compound on the male threads of the metal pipe. Plumber's seal tape
should be used with plastic threads. All connections must be air tight to
insure normal operation.
Slope all inlet piping upwards towards the pump to prevent trapping air.
Unions or hose couplings can be installed near pump to facilitate removal
for servicing or storage. A rubber hose installed between the water
system and the house piping will reduce the noise transmitted to the
house.
Plastic pipe can be used on all installations except 2 in. deep well jet.
The 2 in. deep well jet requires 1-1/4 in. galvanized steel pipe and special
machined couplings (1-13/16 in. O. D.).
The galvanized steel pipe and the couplings restrict the flow of return
water back to the jet unless the couplings are machined.
PIPE SIZES
Long horizontal pipe runs and an abundance of fittings and couplers
decrease water pressure due to friction loss. See Chart 1, on page 5, to
determine the proper pipe size.
SHALLOW WELL INSTALLATION
A shallow well jet assembly can be used with the deep well pump when
the pump is located 25 feet vertically of the water level (See converting
to shallow well pump on page 6). Shallow well installations have only one
pipe between the pump and water supply (Figure 2).
DRILLED WELL (FIGURE 16)
1. Install a foot valve on the first section of pipe (Figure 2, Illustration A).
2. Lower the pipe into the well.
3. Add pipe until the foot valve is 5 feet below the lowest anticipated
water level.
The foot valve should be at least 18 in. from the
bottom of the well or sand or sediment could be
drawn into the system.
4. After proper depth is reached, install a well seal or pitless adapter to
support pipe and prevent surface. water and other contaminants
from entering well.
5. Slope the horizontal pipe upward toward the pump to eliminate
trapping air. Sloping the pipe will also aid in priming the pump.
DRIVEN WELL
• Drive the point several feet below the water table.
NOTE: A packer type foot valve can be installed in the well (Figure 2,
Illustration B). This type of foot valve allows the piping to be filled with
water when priming and makes the inlet pipe much easier to test for
leaks. Follow the manufacturer's instructions when installing the packer
type foot valve.
As an alternative, an in-line check valve can be used with a driven well
(Figure 2, Illustration C). The pipe between the check valve and the water
level will always be under a vacuum.
WELL SEAL
WELL CASING
ILLUSTRATION A
TO PUMP
PACKER TYPE
FOOT VALVE
ILLUSTRATION B
TO PUMP
INLINE CHECK
VALVE
Figure 2
3
CWS Series
TO PUMP
FOOT VALVE
DRIVE POINT
DRIVE POINT
ILLUSTRATION C
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