This furniture grade PVC elbow adjusts a from 90 to 270 degrees to change or move elements of a PVC structure or to obtain angles not possible with standard elbows. Fits inside of 1-1/4” Size Schedule 40 PVC pipe.
How to Build a Easy DIY Solar Pool Heater. All you need is 4 two foot lengths of pvc, 4 90 degree pvc elbows, foam pipe insulation, duct tape, 6 mil black plastic and some wire ties. The project takes less than one hour. This design works great for above and in ground swimming pools. http://www.diyeasycrafts.com/: