Initial Polyectrolyte Set-Up (Figure 2-40).
Stroke control knobs on all chemical injection pumps turn only when pumps are running.
To avoid damaging knobs, do not attempt to turn knobs when pumps are off.
Make sure the speed controls on all thee chemical injection pumps am in the OFF position
(speed controls for all three pumps are the same as item 3, Figure 2-40).
Polyelectrolyte is not used in low turbidity which contains moderate to high color.
Refer to para. 2-15a (5) to determine water color and para. 2-6 to determine turbidity.
The polyelectrolyte tank and chemical bottles are identified by a triangle symbol.
Figure 2-40. Initial Polyelectrolyte Set-Up
Change 12 2-73