Astralpool 11619 Manual De Instrucciones Y Funcionamiento página 9

5. STARTING
Once hydraulic installation has been assembled open all in line valves, turn multiport valves to
"Recirculation" and start the pump. Check all connections of installation to make sure that there are no
leaks. Retighten raccords if necessary. Turn off pump.
• Prepare the necessary D.E. amount for your model (see Technical Characteristics), then mix
with water until a liquid paste will be made up.
• Any kind of D.E. for pools can be used, even though we recommend using the following types:
- CELITE 545
- CELATOM FW-60
• Open air vent valve, set control valve to Filtration position and start the pump. When a steady
stream of water appears, close the vent valve.
• Immediately, introduce D.E. paste directly into the skimmer.
• It is possible that at the beginning, return water would not be enough clear but such
phenomenon will quickly disappear.
• Once the whole installation will be operating, write down the pressure gauge reading.
6. FILTER CLEANING AND MAINTENANCE
As filter will be getting dirty, filter pressure will be gradually increasing. If, after a period of repose,
pressure rises 0.7 kg/cm2 (10 PSI) above the annotated pressure, filter backwash will be necessary. If
pool were new, backwashing will take place 48 hours after installing the filter.
6.1 Backwash
By this procedure either all dirty particles and D.E. will be removed from filter and drained. To get a
perfect backwash, filter should be left reposing for a few hours.
a- While pump is off, open set control valve to "Backwash" position.
b- Start pump until water will be clear. Turn off pump.
c- Set control valve to "Rinse" position and start pump for 30 seconds.
d- Repeat operations "a" and "c" until water will be completely clear when starting the pump.
e- Check the pool's level of water.
In order to reoperate the filter, set control valve to "Filtration" position and reintroduce D.E. as indicated
on section 5.
6.2 Filter disassembly
Before disassembling filter, turn off pump and the installation electrical switch.
• Set control valve to "Closed" position.
• Open the filter's drain plug and air vent valve (nº3 Fig. 8) to completely drain the filter water.
• Remove handle operated clamp loosening the nuts (Notice: complete clamp disassembly is not
necessary).