Drain Odour Trap ( valve )

This cap can be placed inside your bathroom floor drain to stop odours from the sewer.
It has a valve which the water pushes open when showering but a counter weight closes when there is no water flowing.

Designed it for my house which has old drains without water traps and unpleasant smells come back up from the drains.

Post Print instructions:

There are two parts. One is the valve the other is the body that goes in the drain.
To assemble them I just squeeze the body and insert the valve in the holes.
I had to use a sand paper to smooth the counter weight back and body inside to allow for smoother operation. At 0.3 layer height it came out a tiny bit rough, but I was impatient. If you print it in a higher resolution like 0.2 or 0.1 even it should be baby bottom smooth and no need for sanding :)
Enjoy no smell bathrooms as I do now.
Damn 3d printing is an awesome thing. Cant wait to design more stuff.