plumbing trap for a sink (FreeCAD) source

thingiverse

Most plumbing traps under the sink are big, bulky and have a P-trap design. https://en.wikipedia.org/wiki/Trap_(plumbing) This is a space saving version connecting your standard size sink (Australia) to a small pipe like in a caravan or RV. Warning: most countries allow only P-trap due to stinky gas backflow possibility, however many are using the Q, J and S designs. This is a modified P design, where the P is revolved around to save space. Works great, no backflow, however might be is not certified in your area. Use at your own risk and responsibility. Print upside down, ABS or PETG, 20% infill, 4 perimeters. no supports or just where touching the print bed. The pictured was printed without supports.