5
Connection to your Water Source
BELOW GROUND WATER SOURCES
Whenever the installation position of the pump is higher than 1m (3.3ft) above the
lowest water level, a foot valve must be used on the end of the suction pipe as
illustrated in (C) below. Ensure that the foot valve is at least
1
/
2
metre below mini-
mum water level.
SPEAR POINT INSTALLATIONS
When a Dynajet
®
is installed on a spear or well point, a check valve must be fitted
immediately on top of the spear point itself, as shown in (D) above.
DO NOT IN-
STALL THE CHECK VALVE AT THE PUMP OR AT THE TOP OF THE WELL. DO
NOT RUN THE PUMP WITHOUT WATER.
NOTE: Be certain to select the spear point to suit the well conditions and
regulate the flow rate from the pump accordingly.
SPEAR SIZE
MESH
APPROX. MAX. CAPACITY OF SPEAR
POINT
1
1
/
4
” (32mm)
60
15 - 23 1/min or 200 - 300 gal/hr
1
1
/
2
” (38mm)
60
23 - 38 1/min or 300 - 500 gal/hr
2” (50mm)
60
38 - 75 1/min or 500 - 1000 gal/hr
Spear point flow capacities vary considerably. Check with the
supplier to ensure the pump and spear point are correctly matched.
Priming and Operation
1. Fill pump and suction line (on flooded
suction, simply open gate valve
to pump). When full, fit Supercell
Pressure Tank or Priming Plug as
applicable.
2. Ensure outlet nearest to pump is
open.
