At The Beginning Of The Next Irrigation Season - Netafim SANDSTORM User Manual

MAINTENANCE
12. Open all gravel-filter covers, drain all the water out of the filtration system (preferably by removing the
outlet manifold end-cap). When the filters are completely drained, close the filling ports.
13. Disconnect the electricity source of the backwash controller (for battery-operated controllers – remove
the batteries).
For further assistance, contact your local Netafim™ representative.

At the beginning of the next irrigation season

1. Check all covers, gaskets and screen/s that were stored at the end of the previous season. Clean them
and wash with fresh water.
2. Check the level of media inside the filters.
• If the level is lower than the media level marker on the filter tank - add media.
• If the level is higher than the media level marker on the filter tank - remove media.
3. Install the screen and cover of the secondary screen filter.
4. Connect the electricity source to the controller (for battery-operated controllers – replace the old
batteries with new ones) and perform a manual backwash – be sure that the controller sends signals in
sequence to the solenoids valves and that the solenoids are reacting.
5. Clean the screen filter in the control assembly with fresh water.
6. Lubricate all the screws and bolts of the system. In particular, carefully oil the screws of the port covers
in the gravel filter and the secondary screen filter cover.
7. Perform chemical cleaning of the media (see
8. Run according to the irrigation program.
For further assistance, contact your local Netafim™ representative.
12 SANDSTORM SINGLE-/DOUBLE-CHAMBER USER MANUAL
™
Algae and bacterial growth control, page 13).