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2. Cut the bag open as close as possible to the seal at the end of the bag, so that the
bag may be reused if necessary.
3. Remove the membrane element from the bag and remove the foam protectors
from each end of the membrane element.
4. Remove the parts from the parts container (if included) and inspect. Make sure
all parts are clean and free of dirt. Examine the O-rings, brine seal, and permeate
tube for nicks or cuts. Replace the O-rings or brine seal, if damaged. Set the
membrane element aside, in a clean space, and continue on to Step 5.
5. Remove the end caps from both ends of all membrane element housings on your
machine. This is done by removing the screws and retaining ring on each end cap
closure assembly.
6. Determine the direction of fluid flow in the membrane element housing. (Be cer-
tain to look at the “Direction of Flow” arrow on each membrane element housing;
they may be different within a given machine.)
7. Inspect the membrane element housing and clean as necessary to remove any con-
taminants, obstructions, etc.
8. Apply a small amount of O-ring lubricant to all O-rings on the end caps and the
brine seal on the membrane element.
9. Insert the downstream end of the membrane element in the upstream end of the
membrane element housing (i.e., load in the direction of flow; the brine seal is on
the end of the membrane element that goes in last).
10. Insert the membrane element in the membrane element housing with a smooth
and constant motion. When you reach the point where the brine seal is about to
enter the housing, gently turn the membrane element to ensure that the brine seal
enters the housing without coming out of the brine seal groove.
11. When all of your membrane elements are installed, close the membrane element
housing by reinstalling the end caps and clamps. It is preferred to install the bot-
tom end cap first and tighten the clamp completely before installing the top end
cap.
12. Reinstall the end caps by gently twisting the end cap while pushing it on to the
permeate tube. Insure that you do not pinch or fatigue any O-rings while pushing
the end cap on. Push the end cap on until the outer diameter of the cap passes the
retaining ring groove. Install the retaining ring screws.
13. Reconnect any fittings that were removed when disassembling the membrane ele-
ment housings.
14. Return to Initial Start-Up (Section 3.2).
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