Market Forge Industries ECO-TECH PLUS ETP-10E Installation & Operation Manual page 26

INSTALLATION, OPERATION MANUAL, MODEL ETP-10E
6.0 PREVENTIVE MAINTENANCE (Continued)
To replace scale cartridge:
a. Shut off inlet water.
b. Open a downstream valve to relieve pressure (if installed).
c. Unscrew the cartridge in the direction shown in the illustration and discard.
d. Lubricate O-ring of new cartridge with water. DO NOT use petroleum jelly.
e. Install by turning new cartridge toward the right until it comes to a complete stop. DO NOT
over tighten. (Never use tools to tighten a cartridge).
f. Turn on inlet valve, bleed air through a downstream valve (if installed) until water appears
clear, and check for leaks. System is now ready for use.
Part No. 10309R0 26 2019-05-14