Parker UC-DF, Quick Start Manual

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C o n f i d e n t i a l P a r k e r S e a R e c o v e r y
0 6 1 2 2 0 1 7
9. Remove the cleaner 1 cartridge from the downstream prefilter housing AC-20B and
install a carbon/sediment filter element.
10. Flush the UC system for 5 minutes with fresh clean water to remove cleaner 1 from the
system
11. Stop the UC system, and perform the sames steps as noted above, but using cleaner 2 .
12. End with a fresh water flush through the system and install two new carbon/sediment
prefilters.
13. With cleaning and flushing complete, restart the UC system under normal operating
conditions and record all new flows, pressures, and conductivity after 5 – 10 minutes of
steady-state operation.
Note: For extended RO system shutdowns for more than 2-4 days, perform a cleaning and then
flush a Parker preservative solution through the membranes.
Parker Membrane Preservative: 85-0103
Standard RO Cleaning Guidelines - Fundamentals
In normal operation, the membranes in reverse osmosis elements can become fouled by mineral
scale, biological matter, colloidal particles, insoluble organic constituents and other
contaminants. Deposits build up on the membrane surfaces during operation until they cause loss
in normalized permeate flow, loss of normalized salt rejection, or both.
Membrane elements should be cleaned when one or more of the below mentioned parameters are
applicable:

The normalized permeate flow drops 10%

The normalized salt passage increases 5 - 10%

The normalized pressure drop (feed pressure minus concentrate pressure) increases 10 -
15%

2-6 months of RO system operation (potable city/tap water or similar well water)

1-3 months of RO system operation (surface waters or similar)

1-4x/month (high fouling source waters/wastewaters)
If you wait too long, cleaning may not restore the membrane element performance successfully.
In addition, the time between cleanings becomes shorter as the membrane elements will foul or
scale more rapidly.
Please follow the guidelines below when handling, transporting and storing RO elements:

Protect from direct sunlight.

Store in a cool, dry place with an ambient air temperature range of 33°F to 95°F (1°C to
35°C).

Do not allow the elements to freeze.

Keep elements in their original packaging until required for use.

Do not store membranes for more than a year.
Use the record keeping charts and complete the monitoring tables at least daily.