Culligan International Water Softener CSM-750-3

Warning: This procedure requires trained personnel with PPE!

Is the water softener in daily use?

If the water supply contains iron, regenerate the softener before sanitizing to remove iron from the resin.

CAUTION! HAZARD FROM TOXIC FUMES! CHLORINE BLEACH AND COMMON IRON CONTROL CHEMICALS MAY GENERATE TOXIC FUMES WHEN MIXED.

IF THE UNIT USES CULLIGAN SOFNER-GARD® OR OTHER COMPOUNDS CONTAINING SODIUM HYDROSULFITE, SODIUM BISULFITE, OR ANY OTHER REDUCING AGENT, DISCONNECT THE DEVICE FEEDING THE CHEMICAL(S) AND MANUALLY REGENERATE THE UNIT BEFORE SANITIZING.

DO NOT USE THIS PROCEDURE IF THE SOFTENER SALT CONTAINS IRON CONTROL ADDITIVES.

Amount of household bleach (5.25% sodium hypochlorite) poured into the brine chamber

Upload a photo of the clean-out plug before removal

Clean-out plug removed successfully

Upload a photo of the flow washer area (Figure 108)

Flow washer area inspected successfully

Upload a photo of any foreign material lodged in or near the flow washer(s) (Figure 109)

Foreign material removed successfully

NOTE: AVOID USING A SHARP OBJECT WHICH MIGHT CUT OR DAMAGE THE RUBBER FLOW WASHER(S). SHOULD IT NOT BE POSSIBLE TO CLEAR THE CONTROLLER THROUGH THE CLEAN OUT PLUG, REMOVAL OF THE FLOW CONTROL NIPPLE WILL BE REQUIRED TO GAIN BETTER ACCESS TO THE FLOW WASHER AREA.

Is removal of the Backwash Flow Control nipple necessary?

Upload a photo of the disconnected flexible tubing from the compression fitting

Backwash Flow Control nipple replaced with compression fitting downstream of the flow washer

Flexible tubing connected to the compression fitting in the side of the Backwash Flow Control nipple

Clean-out plug inserted and tightened

Warning: This service requires trained personnel with PPE!

Is the softener in service and under pressure?

If the softener is not in service or under pressure, stop the procedure and report to the maintenance team.

Check if the Backwash Flow Controller is plugged with scale, rust, or other foreign material.

If the Backwash Flow Controller is plugged, cleaning is required.

Choose the type of cleaning done

Enter the backwash flow rate after cleaning

Sign off on the Backwash Flow Controllers Service

Complete shut down procedure is as follows:

1. Disconnect the electrical power to the MVP controller.

2. Make certain that the lines you shut off are for the system you are performing service on.

a. Open by-pass valve if one is available.

b. Close the inlet isolation valve.

c. Close the outlet isolation valve.

d. Close the manual brine valve (If installed).

e. Close the separate source isolation valve if one is available.

f. Any external source of pressure to the pilot valve.