How to Install an Undersink Water Filter

Filtered water is healthy water.

Drinking water is important for general health. Although contaminants in water cannot be seen, they are present. Toxic bacteria, heavy metals and chemicals pollute most natural water sources. Bottled water may have some unhealthy contaminants removed, but the plastic from the bottles further contaminate the water with the additives that occur in the plastic. Filtering your home tap water is a good solution to rid drinking water of unhealthy contaminants.

Things You'll Need

• Under sink water filter unit
• Instructions
• Adjustable wrench
• Scissors or utility knife
• Drill

Instructions

1. Install an under sink water filter according to the manufacturer's directions. If the sink has a sprayer, you must drill another hole to accept the filtered water dispenser. This dispenser looks very similar to a faucet, but will dispense filtered, healthy water. Drill the hole in the sink or on the countertop, and place the dispenser in the hole.

2. Locate the cold water line, and turn it off. Turn the faucet on to remove excess water from the line. Locate the saddle valve. Follow the directions, and drill a small hole into the cold water supply line. With the new saddle valve, turn the handle to show the puncturing part of the valve. Place the valve over the drilled hole. Place the plate on the back of the water line, behind the new valve; place the valve over the drilled hole, and tighten the pieces together. Turn the handle until the puncturing part pierces into the hole in the water line.

3. Place the unit under the sink in between the dispenser and the cold water line. The instructions include specific measurements. Attach the unit to the back of the cabinet using the screws provided with the water filter.

4. Measure and cut the provided plastic tubing to fit the area between the unit and the saddle valve. The tube should be long enough to allow some slack but not cause a kink in the line. Place one of the supplied compression fittings on the end of the tubing, and attach to the saddle valve. Tighten with a wrench.

5. Place another compression fitting on the other end of the tubing, and thread into the inlet of the unit. Tighten the fitting.

6. Measure another piece of tubing to fit from the unit to the dispenser. Leave some slack, but not enough to kink. Install a compression fitting to one end and attach it to the unit. Install another compression fitting to the other end, and attach this to the dispenser.

7. Turn on the water, and let it run for a few minutes to fill the tanks with water and to remove any air pockets and excess carbon dust. Turn on the dispenser, and allow it to run for about 20 seconds to ensure filtration.

Tips & Warnings

• Don't forget to turn the water off before drilling into the water line.

• As with all power tools, use caution when using a drill.

References

• MultiPure: MP750 Below Sink Manual

Resources

• Free Drinking Water: Health Importance of Water