I have found a water duplication glitch in your game for OSX, and Windows. When you set up a water loop for the bathroom, one little drop of water can eventually fill all the pipes. My pipes started out with only one water bubble now there is four... I would like this glitch fixed because it always makes my toilet break and the dupes make a mess all over my base.
First set up a bathroom filtration loop (something like in the picture), then just sit wand wait for the water to build up. (p.s. it will take a couple cycles)