Horizon Reverse Osmosis Seafari Versatile SFC-1400-2, Owner'S Manual

Page: 98 / 162

HRO
Systems
Horizon
Seafari
“Section J” System & R.O. Membrane Element Storage Procedure
C. HRO R.O. MEMBRANE ELEMENT
CLEANING PROCEDURES
Do not arbitrarily clean a New System. Low product
water production and or High Salinity Product Water
readings from a New System is likely due to factors
other than fouling. If a New System experiences low
production or high salinity then the New System
should be operated for up to 12 or more hours
continuously to clear the R.O. Membrane Element
and product water channel. If, after 12 hours of
continual operation, the system still experiences low
production and or high salinity then contact the
factory.
The membrane elements require cleaning from time
to time. Biological growth and salt accumulation
eventually make replacement necessary. The
frequency of required cleaning is dependent on the
rate of production loss and salt rejection loss caused
by normal use. In order to properly assess
performance changes, it is important that daily log
readings be made and referred to for comparison.
When determining the percentage of performance
changes, Feed Water Temp, Feed Water Salinity, and
System Operating Pressure must be taken into
consideration (Refer to APPENDIX B) and
compensate for those variables. After
compensations, a 10% decline in productivity (GPH
Flow) and/or a 10% increase in salt passage indicate
that the R.O. Membrane Element requires cleaning.
If Production rate has dropped dramatically since the
last time the system was used, this may be due to
drying out of the R.O. Membrane Element(s) and/or
fouling during storage. If the system has not been
used for several months and the production rate has
dropped dramatically since the last time used, try
operating it for 12 or more continuous hours to
saturate the Product Water Channel within the R.O.
Membrane Element.
If Production rate has dropped dramatically from one
day to another then the reason for production drop
may be due to chemical attack or suspended solids
fouling, which is not likely cleanable. Chemical
attack can be from sewage chemicals or petroleum
products. Suspended solids fouling usually consists
of silt, coral dust, or debris in rivers or inland
waterways, or any other small solid matter.
D. R.O. MEMBRANE ELEMENT CLEANING
CAUTIONS AND INFORMATION:
The Horizon Seafari R.O. system must be rinsed with
fresh water before beginning any cleaning procedure.
Cleaning of the R.O. Membrane Element(s) with the
HRO CC R.O. Membrane Element Cleaning
Chemical is performed as follows: (Refer to the
diagrams on page J-3 when rinsing and closed loop
cleaning the system.)
The process of rinsing and cleaning the R.O.
Membrane Elements requires 40 to 200 gallons / 151
to 757 liters of fresh non- chlorinated product water.
The amount of fresh water required depends upon
which cleaning chemicals are used and the different
Pre-filtration equipment installed.
Product Water Required For Cleaning of the R.O.
Membrane Element(s):
System with the Standard Pre-filtration only:
Chemical
Rinse Clean Recirc. Final Total
Rinse Water
Used
HRO CC-1 10 10 10 10 40
HRO CC-2 -- 10 10 10 70
HRO CC-3 -- 10 10 10 100
If the System Includes Commercial Pre-filtration and
Oil Water Separator:
Chemical Rinse
Clean Recirc Final Total
Rinse Water
Used
HRO
CC-1 20 20 20 20 80
HRO CC-2 -- 20 20 20 140
HRO CC-3 -- 20 20 20 200
The cleaning compounds available from HRO are
designed to clean the R.O. membrane elements in a
closed-loop configuration. These Chemicals are
designed to clean moderate fouling. If the R.O.
Membrane Elements are excessively fouled and in-
field cleaning is not successful the R.O. Membrane
Element(s) may be returned to HRO Systems or to
one of HRO Systems’ many Service Dealers for more
controlled and stronger chemical cleaning. If you
wish HRO Systems to perform cleaning of the R.O.
Membrane Element, contact us for a Return
Authorization Number, price quotation and return
instructions.
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