DUO-60 v2.3 (01/2021)
Page 21
Membranes sterilizing procedure
1. Easy method
using
the ST2 sterilization cartridge (reusable):
We have developed a sterilization cartridge that greatly facilitates handling. The
instructions for this cartridge are given in
Appendix 4
.
2. Manual method
without
the ST2 sterilization cartridge:
With the watermaker turned off, thoroughly rinse it for 10 minutes with fresh water
using the 3-way valve on the prefilter. Pour the sterilizing product (whole bag) into a
bucket containing 8 litres of water. Uncouple the seawater inlet pipe and immerse it in
the bucket. Start the watermaker without increasing the pressure until the bucket is
empty. Once the bucket is empty and the operation completed, reconnect the pipe.
3. Method using a garden sprayer:
Pour the sterilizing product (whole bag) into a bucket containing 8 litres of fresh water
and mix everything together. Fill the garden sprayer with this mixture and increase the
pressure to 3 or 4 bar. Then inject the sterilizing solution at the inlet of the membranes
(red mark side).
➥
Note
: Before using the watermaker again simply rinse it with fresh water for a few
seconds, using the 3-way valve located on the pre-filter, in order to eliminate the
sterilant.
4) High-pressure pump
The high-pressure pump is half filled with oil to the level indicated on the gauge. The oil used
in the pump is a 15W40 or 20W40 multigrade oil. You not exceed the level (as shown on the
gauge). The oil does not need to be change over time.
