OP175 System Installation, Operation & Maintenance
14
The only routine maintenance required on the
system is periodic replacement of the carbon/
sediment pre-filters and the mineral addition
cartridge. The CTO-Q10 cartridges should be
changed every 3-6 months depending on water
usage. In areas with high levels of sediment and
other contaminants the CTO-Q10 cartridges may
require more frequent changes. The mineral
addition cartridge should be changed when the
Optimized Water TDS drops.
Pre-Filter change procedure
1. Either close the Water Supply Valve (shutting
off all water flow), or put the Emergency
Bypass Valve (on the Processor) in the
System Bypass position (allowing untreated
water to continue to flow to the equipment).
2. Wait a moment for system pressure to drain
off.
3. Once the system pressure has been relieved,
remove the two CTO-Q10 cartridges by
turning a quarter-turn to the left and pulling
down on the cartridge.
4. Install the new CTO-Q10 cartridges into
the QT heads by aligning the notches and
pushing up, then turn a quarter-turn to the
right.
5. If it is necessary to replace the Mineral
Addition Cartridge, repeat steps 4 - 5 for the
Mineral Addition Cartridge.
6. Install a piece of 3/8” tubing in the Processor
Sample Port valve, open the Sample Port,
and direct to a bucket or drain.
7. Turn the Tank Inlet Divert Valve to the Bypass
Mode (Handle Pointing UP).
8. Open the Water Supply Valve and put the
Emergency Bypass Valve in the “SERVICE”
position, allowing water to run into the new
Pre-Filter cartridges and purge air through
the system and out the Sample/Flush Port to
drain.
9. Once the air has been purged and filters
flushed, close the Sample Port valve and
return the Tank Inlet Divert Valve to the
Normal position (handle horizontal or down).
9. Check for leaks.
Optional Post-treatment cartridge change
procedure
(if applicable)
1. Close the ball valve at the inlet to the Post-
Treatment assembly.
2. Remove the existing cartridge and discard.
3. Install the new cartridge.
4. Open the ball valve and the RP pump should
actuate filling the housing with water.
Routine Maintenance: Filter Change Procedure
CTO-Q10 Pre-
Filters
PN: 300-05828
Change Every
3 to 6 months
MA-Q10 Mineral Addition
Cartridge
PN: 300-05850
