Bend PVC in your garage for home projects.
Get a good heat gun – one that melts paint. People use heat guns, gas torches or stoves.
The secret to bending PVC without kinking is to not allow the kink to rise.
I use a secured board on top of the expected bending point to prevent any rise.
I have seen some advice of using tape over the bend point and filling the pipe with sand up to the bend point, but that sounds like too much work.
Actually, the easiest way is to buy pre-bent PVC pipe in 90s, 45s and 30s.