2nd to 7th stages of the ALPS filtration system:
*Replace every 6 to 9 months.
Immerse/soak in water for at least two hours, which rids the cartridge of any dust particles from the manufacturing process and primes it for use. After soaking the 6-stage filter cartridge, place it under running water and then give it a good shake. This will remove any air pockets and give you a good flow. (Repeat this process if ever you find your units water flow is slowing down). Screw cartridge onto threaded plate and place onto lower/bottom water tank cover. Flush/backwash the cartridge every 2-3 months under running water.