Specifications

23G-Series RO System
3024270 Rev G 66 14Oct13
• The peracetic acid-based chemical solution is mixed with water free
from iron and other transitional metals. RO water is preferred.
• The peracetic acid-based chemical solution temperature is kept at or
below 77°F (25°C). Ice or other cooling methods may be required to
keep temperature down.
• The PA membranes’ exposure to the peracetic acid-based chemical
solution does not exceed one hour per week at a chemical solution
concentration of 1%.
CAUTION:
Prior to sanitizing, a thorough cleaning with Liquid Clean 103 or similar
product is required to avoid membrane damage.
The 23G machine has a CIP feed port into which sanitizing solution can
be fed from a CIP tank and pump. In this case, sanitizing can be
accomplished with the same procedure used for cleaning.
Refer to Section 5.8.2 Cleaning/Sanitizing with CIP.
5.10 Membrane Element Cleaners and Sanitizers for 23G Machines
Table 5.8 Liquid Chemical Cleaners
Cleaner
Description
Part Number
Quantity
Liquid
Clean 103
Cleaner for removal of calcium carbonate &
metal hydroxide based scales.
1228653
1 GAL
Liquid
Clean 511
Cleaner for removal of oils and organic
coagulants.
1228791
1 GAL
5.11 Pre-Filter Replacement Procedure
Five micron pre-filters are factory-installed to protect the high-pressure
pump, membranes and valves from particles in the feedwater.
The pre-filter cartridges should be replaced regularly to minimize pressure
drop and help minimize biological growth. Monthly replacement is typical.
An increase in pressure drop across the filter indicates the pre-filter
cartridges need changing. Use only Mar Cor Purification approved filters
rated for 5 microns or less. Do not attempt to clean used pre-filters.
The pre-filters should be replaced before and after cleaning or sanitizing of
the membranes elements.
1. To change the pre-filter, turn the water supply off. The pre-filter inlet
and outlet gauges should read zero psi.