MARIMEX ProStar Profi 4 - Maintenance and Back Flushing; Back Flushing Procedure; Pump Pre-filter Cleaning

39
EN
4. RETURN RELAY Flow of water from the pool against the direction of ow throu-
gh the lter tank either to the waste pipe or to the pumping pit.
5. CLOSED Closing all outlets, water does not circulate.
6. WASTE Water ow without ltration into the waste pipe or pump pit.
7. RECORDING No function, the position is used when shutting down the lter and
for safe wintering.
WARNING: The valve lever must not be used to carry the lter container, it may
break.
Maintenance
The gradual build–up of impurities in the sand ller tank increases its resistance. If
the pressure value (watch the pressure gauge) in the lter tank increases by appro-
ximately 0.2–0.3 bar above the original value, arinse is required. Check the pressure
value at the beginning of each lter cycle.
NOTE: In order to maintain hygienic conditions and optimize eciency, back
ushing must be carried out irrespective of the operating time or the increase in
the pressure (pressure) due to contamination at least every 8 days. If there is an
increased load, reverse ushing must be performed more frequently.
Replacement of sand ller
The absorption capacity of sand ller to capture impurities lies in the roughness of
the individual grains of sand, which are gradually changing during ltering. To main-
tain the maximum ltering eect, we recommend replacing the sand ller before
each event or every second season.
Pump pre–lter cleaning
– Switch o the pump motor (disconnect the plug from the socket).
– Close the shut–o valves. *
– Unscrew the threaded ring and remove the transparent pre–lter cover. Remove
the screen coarse prelter, clean and reinsert. Replace the transparent cover and
screw it in and tighten the threaded ring.
– Open the shut–o valves.
– Connect and turn on the pump motor.
WARNING: The pump motor must not be operated without acoarse prelter sieve,
otherwise it may become clogged and blocked.
* If the shut–o valves are not used, water will ow from the open suction pump.
Faults and their removal
• The pressure gauge shows apressure greater than 1 bar
◊ Clogged sand ller. —> Re-ush.
• Drainage of wastewater
◊ It is asign of damage to the valve sealing surfaces. —> Have the valve repaired.