Installation Instructions.
Important Installation Recommendations
Read entire manual. Failure to follow all guides and rules could cause personal injury or property damage.
■Check with your local public works department for plumbing codes. You must follow their guides as you install the Water Filtration system.
■Use the Water Filtration system on a potable,
■Protect the Water Filtration system and piping from freezing. Water freezing in the system will damage it.
■Your Water Filtration system will withstand up to 125 psi water pressure. If your house water supply pressure is higher than 100 psi during the day (it may reach higher levels at night), install a pressure reducing valve before the system.
WARNING: Do not use with water that is microbiologically unsafe or of unknown quality without adequate disinfection before or after the system. GX1S15C (rev. 2) is certified for cyst reduction and may be used on disinfected water that may contain filterable cysts. The water should be tested periodically to verify that the system is performing satisfactorily. Small parts remaining after the installation could be a choke hazard. Discard safely.
Tools and Materials Required for Installation
■Slotted and Phillips screwdrivers
■Pliers and adjustable jaw wrench
■Hand or battery powered drill and 1⁄4 ″ bit (saddle valve installation)
■Electric drill and drill bit to drill 3⁄4 ″ hole (type as required) if mounting hole is needed for faucet
Be sure to use the proper procedure for drilling porcelain or stainless steel. Special drill bits may be needed.
CAUTION: To avoid damaging the sink, consult a qualified plumber or installer for drilling procedures. Special drill bits may be needed for porcelain or stainless steel.
Contents included with the product:
■Water filter assembly, including mounting bracket and screws
■Product Literature (Owner’s Manual and Installation, Product Data Sheet, Owner Product Registration Card)
■Water supply/saddle valve
■Filtered water faucet, for sink or countertop mounting
■3⁄ 8 ″ tubing and fittings to make all needed connections
■Sump wrench
Installation Overview
Locate the drinking water system on the cold water supply pipe, under the kitchen and/or bathroom sink, to filter the cold drinking water.
| Tubing insert |
Filtered | Tubing adapter |
water faucet | Compression nut |
Sink |
|
| Tubing |
| Water out |
Water supply valve |
|
Hot Cold |
|
Shutoff valve
NOTE: To change the filter cartridge, you must turn off the water. A nearby shutoff valve is convenient. Most sinks already have shutoff valves on the supply pipes.
Model GX1S04C only
Water in
Mounting
Insert
screw (2) Nut
Tubing 
4