WinterRoot

Vision Tech for Counter Tech

I wanted to set up a greywater system to reuse water from our sinks in the toilet tank. At first I just took off the the drain pipe and used the bucket method. This works, but it’s not really the best way to live. I’m not ready for a complex system yet, and storage of grey water is one of the ways to really get yourself in trouble with a system - untreated grey water needs to be used within 24 hours of collection. I decided to simply run a pipe from the sink to the toilet tank. To do so, I had to take the sink off the wall and raise it a foot or so.

Once the sink was raised, I attached the pipe. I had to get a new drain insert for the sink and saw it down to allow the sink to sit at an appropriate level and still drain into the toilet.

the final setup, simple but effective:

The end product of this experiment works pretty well. The volume of water used in the sink isn’t always enough to keep the toilet full tho, and often it’s necessary to run the sink for a bit to fill up the tank. Leaving the automatic tank filler connected isn’t an option since if pressure in the lines drops suddenly grey water can be pulled back into the plumbing system. The next step will be to connect another sink in the vicinity to the toilet to increase the amount of grey water. The other sink is a kitchen since so it will definately require some kind of trap to keep food particles (at least medium or large ones) out of the toilet tank.