Maintenance Requirements
Replacing the Filter Cartridge
The filter cartridge will eventually become exhausted or consumed
and will need to be replaced. RainSoft replacement filter cartridges are
available through your local RainSoft Dealer. If you are unable to
order replacement parts from your local RainSoft Dealer, please
contact RainSoft at 1-800-860-7638 for assistance.
Testing Your Water
If you are relying on this system to reduce contaminants, we recom-
mend testing your water periodically (2 times a year minimum) to
ensure that the system is performing properly. Your local RainSoft
Dealer can arrange this testing for a nominal fee.
How to Change the Filters
1. Turn off the cold water supply and open the system faucet to
relieve any line pressure. Remove Cover
2. Place a drip pan or bucket if necessary to catch the water from the
filter canisters to prevent spillage.
3. To replace the filters, use a Slim Line Spanner Wrench (not
supplied) unscrew the filter housings from the cap. (See Figure 8)
4. Replace the filters and reassemble (See helpful tips).
5. Turn on the inlet water to the Hydrefiner II system.
6. Inspect system for any leaks, make the necessary repairs.
7. Open Faucet. Allow the water in system to flush for 10 minutes.
8. Replace cover.
!
Important Note: We recommend replacing the
filter cartridge every 400 gallons. Your
RainSoft Dealer can give you specific replace-
ment schedules based on your water usage
and incoming water quality.
Figure 8
Model
Pre-filter
Post-filter
HYDREFINER II-SC
51639
51845
!
Important Note: It is important to maintain the
quality of your system by using only genuine
RainSoft replacement filters. Other “made-to-
fit” alternative filters claim to perform the
same duties as the original RainSoft parts, but
these items are not approved for use in your
system! “Made-to-fit” alternative filters will
increase the probability of leaks, putting your
entire system at risk! Also, many aftermarket
replacement filters are not tested for safe
contact with drinking water.
When “made-to-fit” alternative filters are
placed into your RainSoft Hydrefiner II
System, the product warranty will become null
and void and the system will lose its certifica-
tion. To guarantee proper operation and certi-
fication of your RainSoft Hydrefiner II System,
please use genuine RainSoft parts.
Helpful Tips: To avoid contamination, we
recommend the use of sterile gloves while
changing the system components.
!
Important Note: When Unscrewing Filter
Housings use of Slim Line Spanner Wrench is
required. Unscrewing filter housings with use
of other unapproved tools can damage the
filter housings and void warranty.
!
Important Note: It is recommended that the
sump o-rings be replaced on each filter change
to insure proper compression of the o-ring.
Failure to do so may result in over tightening
of the sump to create a seal and can cause
undue stress on the sump and cap that can
lead to cracking of these components under
pressure.
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