21
Operation and maintenance, Discfilter HSF2600 - 2,3 series with PFLC
19. Close the filter cover
20. Start operation again as set out in section 4.1.
Figure 6.13 Hydrotech backwash nozzles.
A. Top nozzle attachment
B. Rubber seal
C. Top: Nozzle nut, self cleaning (optional)
Bottom: Standard nozzle
D. Bottom nozzle attachment
E. 20 mm screw
F. 30 mm screw