Yes you can because this will be for drainage and not a pressured system.
Hello Dan, In general, white PVC schedule 40 pipe will fit snug into PVC DWV (drain, waste and vent) fittings. However, there are a number of different kinds of fittings (non-DWV) which may not have the correct or precise outside diameter that matches the DWV pipes. For instance, CTS, CPVC, drainage fittings, vacuum fittings and furniture-grade fittings may have different inside bores on the female fitting making them loose. Ensure you are choosing DWV pipes to DWV fittings. In particular, for 1-1/4": The outside diameter of the pipe should be 1.666" (or just shy of 1-5/8"). Therefore, any DWV fitting you buy, the bore of the female end should be approximately 1-5/8" so that the two will fit snuggly and allow a glue layer which will melt the the two pieces together. Hope that helps, Jeff
You could but it is a little large for the purpose. Unless maybe you are on city water. I am not sure what the size pipe is.
The PSI is 370psi
I am not sure if the pipe is preasure rated, but the 1in pvc pipe psi @23@c
An engineering website shows max operating pressure of 1 1/4" sch 40 pvc as 221 psi.
Yes, it is flexible and will bend and even make a 90 plus degree turn but if you bend it to tight it will kink and could crack.