FILTER CHANGE & SYSTEM SANITIZATION
Equipment Required:
•
5.25% household, unscented bleach
•
Safety glasses
•
Replacement filter set
•
Plastic bucket or bowl
•
5ml oral syringe
•
Replacement membrane (if membrane change is required)
•
FDA approved o-ring lube
CAUTION: WEAR SAFETY GLASSES WHILE PERFORMING STEPS 4-12
NOTE:
To remove filter cartridge, twist cartridge 1/4 turn counter-clockwise to disengage ears from RO Head
Assembly, then firmly pull downward. To install cartridge, line up cartridge ears, insert cartridge and push upward into
Head Assembly until cartridge fully seats into place. Twist cartridge 1/4 turn clockwise to lock into place (Figure 10).
1.
Turn OFF supply valve.
2.
Drain contents of tank through Air Gap Faucet.
3.
Remove membrane with Red SFC Flow Control tubing still attached and set aside. Note: If system is due for
membrane replacement, discard old membrane.
Note: For Steps 4-9, new pre-filter will be temporarily installed into membrane position.
4.
Remove new Pre-filter #47-55706 (3 cartridge systems) or Pre-filter #47-55702 (4 cartridge systems) from sealed
packaging. Using oral syringe, insert 5ml of household, unscented bleach into the center opening of new
Pre-filter (Figure 11).
5.
After lubricating cartridge o-rings with water, insert new Pre-filter with bleach into membrane position.
6.
Turn ON supply valve for approximately 5 minutes to fill tank.
7.
Turn OFF supply valve and tank valve.
8.
Briefly open and close Air Gap faucet to relieve built up pressure. With NEW Pre-filter temporarily in membrane
position, remove and discard OLD Pre-filter(s) and Post-filter.
9.
Remove NEW Pre-filter from membrane position, lubricate o-rings of NEW filters and insert into proper positions.
NOTE:
Reference and match circular design logos on upper ends of each filter or membrane cartridge to
corresponding designs on manifold ports.
10.
Re-install membrane cartridge with Red SFC Flow Control tubing attached (if new membrane, lubricate o-ring and
install at this time).
11.
Turn ON supply valve AND tank valve. Open faucet until air is purged, then close. Flush 300 ml through PharMate
®
Dispenser(s).
12.
Fill each Dispenser with 150 ml of sanitizing solution.
13.
Wait 10 minutes, then drain sanitizing solution from each Dispenser burette and drain remainder of solution from
Storage Tank through Air Gap faucet. Close faucet to complete sanitization process.
14.
Allow 3-4 hours for tank to fill. DO NOT USE FIRST FULL TANK OF WATER.
15.
Flush 300 ml water through each Dispenser. Drain remainder of first tank of water by opening Air Gap faucet until
water flow stops, then close faucet. This step purges tank, post-filter, and tubing of any remaining tap water
and sanitizing solution. Entire RO system is now ready for initial use.
Figure 11
16
Figure 10
