Aquathin AquaKING RO, Owner'S Manual

Page: 37 / 52

37 © 2009 Aquathin Corporation. All rights reserved.
A:
The membrane’s life depends on the water conditions
as listed in the specification section of this manual. If all
these conditions are met, the life of the membrane is
generally 2–4 years. If a membrane fails or its
performance becomes reduced before this time, the cause
can usually be traced to tap water conditions outside the
specifications or failure to flush.
Q:
How do I know if there is a problem with the
membrane?
A:
The best method is to measure the resistivity
(conductivity) of the RO water and compare it to the tap
water. You can invest in a reliable and inexpensive
resistivity meter (available from your local Authorized
Aquathin Dealer) or you can send samples to them for
analysis. (Poor rejection rates may also be an indication
of a clogged pre-filter, so check that filter first.) A large
increase in the production rate is also an indication of
membrane failure, and can often be traced to the
membrane having been subjected to either freezing or hot
water.
Q:
How can I monitor the performance of the unit?
A:
Your Authorized Aquathin Dealer will register your
warranty card and purchase with Aquathin Corporation.
Every year upon the anniversary of your installation,
Aquathin Corporation and your Aquathin Dealer will
mail or email an Annual Service Reminder to have your
system inspected and serviced if necessary. Also, with
identical feed water pressure, the production rate should
remain fairly constant. If your system begins to produce
water at a much faster rate, the RO membrane may have
failed. If your system is producing water at a much lower
rate, replacing the pre-filter is often indicated.
To monitor the overall system rejection rate, the best
method is to obtain either a resistivity meter or TDS
meter from your Authorized Aquathin Dealer.