My mash/lauter tun is an Igloo ten gallon cooler, with a Phil's Phalse bottom. We have a Lowes and a Menards in town. Lowes didn't help, but Menards had a threaded boiler drain valve, which looks just like an outdoor faucet I looked around until I found two flanges with the same thread and two gaskets.
To attach the Phalse Bottom, I used a barb and a PVC cap. The brass barb fits the outlet from the Phalse bottom. The other side of the barb is threaded. The PVC cap is Schedule 40, which means thick. I drilled a hole in the apex of the cap, a bit smaller that the threaded side of the barb, then twisted the barb into it. Assembly or disassembly takes a minute. After brewing, I disassemble the valve and rinse it out.
I usually get a few drips from it, but less than a teaspoon from a session.
For something cheap, fast and effective, get a drilled, food grade rubber stopper from a homebrew supply store. Put rigid tubing through the hole, and insert the stopper with the thick end inside. Use flexible plastic tubing to connect to the false bottom and to go to the pot. Use a pinch clamp to throttle the tubing.