Pontos AquaCycle 3000-3 Instructions De Montage page 75

Establish the filter backwash supply with process water.
To do so, the flex hose pre-fitted to the pre-filter is connected to the
nipple of the process water pipe.
Take a gasket out of the accessories bag and insert it in the coupling
nut.
Carefully tighten the screw fitting by hand and then
retighten it using pipe tongs.
To connect the main drain pipe (3) and the main pipe of stage 1, fit the
double branch for corners (6) (underneath the pre-filter).
Tighten the two screw fittings by hand.
Secure the main drain pipe by the pre-fitted pipe clamps DN100.
Grease the outlet of the pre-filter.
Push the collar of the pre-filter (2) drain pipe over the greased outlet of
the pre-filter.
Pay attention to a proper fit.
28 25012008/AV/Draft