DIY Network

Water Filtration: Water Supply and Drain Line Installation From "Ed the Plumber" episode DETP-101

With the location of the filtration system determined, host Ed Del Grande explains the installation of the water supply and drain line.

Materials:

Flathead screwdriver
Phillips head screwdriver
PVC shears
Basin wrench
Utility knife
Bucket
Rubber gloves
Water filtration kit
Manufacturer's instructions

advertisement

	Figure A
	Figure B
	Figure C
	Figure D

1. Shut off the main water supply (figure A).

2. The saddle valve (figure B) has a rubber seal to stop leaks along with a hollow needle that taps into the water line.

3. Next, take one of the provided 2" bolts and feed it through the valve into the back-plate. Screw it in about 1", then make sure that the notch in the back and the notch in the front are aligned (figure C). This will insure that the valve will squeeze against the pipe.

4. Place the valve around the pipe with the nozzle pointing downward, then thread the second bolt into the back-plate. Use a flathead screwdriver to tighten it into place. Caution: don't overtighten, or you'll crimp the pipe which will cause a leak.

5. Twist the valve stem until the needle punctures the pipe and water begins to drip out. Once you've completely punctured the pipe, back off the valve to purge the system.

6. Re-tighten to shut off the drip. Now your valve is ready to feed your filtration system. Safety Tip: when working on drain lines, it's a good idea to wear gloves and have a bucket ready.

7. Unscrew the bottom section of the P-trap as well as the disposal drain connection. Loosen the drain nut, then remove the tailpipe. Cut off the tailpipe leaving about 2" below the drain, and reattach.

8. Take your drain line adaptor and mark the length to just at the disposal drain connection. Cut your drain adaptor to length with a PVC saw, then attach to the main drain line and reconnect all the joints (figure D). Note: be sure to tighten everything down to prevent leaks.