Pentair Evolio 255 Series - Page 69

Installer manual Evolio 255 740-760 - Maintenance
Ref. MKT-IM-037 / D - 25.10.2021 69 / 90
8.5.7.2 Cleaning DLFC
1. Remove the softener and valve covers, see Covers removal (softener and valve) [
→
Page62].
2. Using a Torx key, unscrew and extract DLFC (3).
3. Clean DLFC (3) using a soft brush or compressed air.
4. Check for o-rings and ball integrity before reinserting DLFC (3).
Info
Depending on the backwash controller size, it may be of a different type to that shown
below.
If the model fitting the valve is with the ball (2), make sure to clean the backwash
controller grooves and backwash controller chamber (1). Also check for ball (2) integrity
before reinserting.
5. Reverse above procedure steps to rebuild.