Yeah, that's the idea. You will still want to have a p-trap to keep any gasses that may form in their rightful location, but for the most part, since it is just gray water it really doesn't need to be 'treated'. I run my clothes washer out to the yard to keep from taxing the septic in my house. This is a more 'aesthetic' solution. Or, you could just run a hose out to different parts of the yard each time you brew.