Instructions / Assembly
4 
Notes 
  ● Even though there is filtered water in the cold water lines, the hot water heater is still full of 
raw water. Through normal use, this water will be replaced with filtered water in about 2 or 3 
days. 
  ●This filter system should not be used with water that is microbiologically unsafe or of 
unknown quality without adequate disinfection before and/or after the system. 
  ●The system should never be exposed to freezing temperatures. Damage from temperature 
is not covered under warranty. 
  ●After prolonged periods of nonuse (such as a vacation), it is recommended that the system 
be flushed for at least 10 minutes before using the water. 
Filter Change Instructions 
  1. Turn off the water supply to the system. Press the red pressure release button on the top 
of the filter housing to relieve system pressure. If your system was not equipped with a 
pressure relief valve, leave open a nearby faucet. This will make removing the filter housing 
easier. 
  2. Unscrew the housing using the filter wrench included with your system, or a commercially 
available “strap” type wrench.  
  3. Locate and remove the large O-ring using a small, clean flat head screw driver. Try not to 
remove any of the lubricant. Set it aside in a clean, safe place. 
  4. Remove and discard the old filter cartridge. 
  5. Scrub the housing and cap with warm water mixed with about 2 tablespoons of household 
bleach using a sponge or soft rag. Wear rubber gloves. Rinse all parts very thoroughly!  
  6. Lubricate the O-ring with clean silicon grease if needed. DO NOT USE PETROLEUM 
JELLY. Insert the O-ring in the filter groove and press into place. Make sure the O-ring is 
seated correctly.  
  7. Remove the filter packaging and insert the filter cartridges into the housings, making sure 
they slip over the standpipe in the bottom of the housing. 
  8. Align the top of the housing into the cap and hand tighten, then use the filter wrench to fit 
it snug. 
  9. Close any open valves. Turn on the water supply slowly to allow the system to fill with 
water. Inspect carefully for leaks. If a leak is found, remove the housing and inspect the 
O-ring to ensure that it is seated properly, and then retighten. 
  10. Flush the system by turning on a few cold-water faucets. Allow the water to run until the 
air and carbon has been purged. Water may be cloudy initially as the filters and system 
clear of trapped air. New activated carbon filter cartridges may contain loose carbon and air 
bubbles after installation.








