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5.4 MACHINE SANITATION
Run the machine sanitation before each filter change, and in any case at intervals not
e
exceeding 6 months.
Run also sanitizes after prolonged disuse of the machine and at the first starting.
All sanitation operations must be performed by qualified personell.
Use extreme caution in the use and dosage of chemicals.
Use protective clothing to the skin, han
nds and eyes as shown in the safety data sheet of
chemicals used.
Disconnect the permeate pipe and fill a tank with approx 10 liters of permeate water.
Add hydrogen peroxide 10 vol (3%) to achieve a concentration of 0.2% by weight:
dose 650 ml of hydrogen peroxide at 10 volumes per 10 liters of osmotic water or
dose 250 ml of hydrogen peroxide at 24 volumes per 10 liters of osmotic water or
dose 180 ml of hydrogen peroxide at 36 volumes per 10 liters of osmotic water or
dose 50 ml of hydrogen peroxide at 130 volumes per 10 liters of osmotic water.
Close the water intake valve and disconnect the water intake pipes, drain and permeated by
the machinery, put a bridge on the low pressure switch.
Connect the water pipes of entry, drain and permeated by the machine at the tank.
Slightly open the mixing valve, turn the machine on and recirculate the sanitizing solution for at
least 10 minutes.
Turn off the machine and wait 10 minutes until the solution act.
Reconnect the pipes of drain and permeate, previously unplugged by the machine.
Turn on the machine and deliver up to empty the tank of the sanitizing solution.
Reconnect the water inlet pipe to the machine and open the water inlet valve.
Replace the filter and reconnect the minimum pressostat.
Turn on the machine and deliver water for at least 10 minutes to drain any residual sanitizing
solution from the machine.