Protect eyes and skin from direct contact with chemicals. Be especially careful when
opening containers to avoid chemicals and chemical fumes. Wash hands thoroughly
with soap and water after handling chemicals or components exposed to chemicals.
Make sure electrical power is disconnected before working on unit. Failure to do so
could result in serious injury from electrical shock or moving parts.
Refer to para. 4.26 for chemical tubing repair procedure.
Open drain valve (1, Figure 4-42) at bottom of tank and drain tank.
Tag and disconnect chemical tubing (2) from drain valve (1) and tee (11).
Disconnect chemical tubing (3) from backwash hypochlorite pump vent valve (4).
Cut plastic ties securing wiring harness to wall.
Loosen screw (5), Iockwasher (6), and washer (7) and lift and remove bracket (8).
l When lifting out of frame be careful mixer motor does not hit panel.
l Be careful not to break valve or tee on tank bottom.
f. Lift entire hypochlorite tank assembly (9) from frame (10).
Replace valve (1), tee (11) and two nipples (12).
a. Install two nipples(12) using antiseize tape and install valve (1) and tee (11). Place hypochlorite tank assembly (9)
on frame (10).
Position bracket (8) on tank and secure with capscrews (5), Iockwashers (6) and washers (7).
Install electrical cables to switch panel No. 2 (para. 4-31).
Secure level switch harness to wall with tie wraps (para. 4-10).
Install chemical tubing (3) on backwash hypochlorite pump vent valve (4).
Connect chemical tubing (2) to valve (1) and tee (11).
4-170 Change 2