Code in Canada is no more that 3 90 degree bends in a run without pull
boxes. If you use 4 the pipe had better be very well fastened...something's
probably going to let go.

Fred
wrote in message
oups.com...
With 4 90-degee turns, even with a lubricant the pull, while possible,
may be probemlematic. You could possibly accomplish it using a
hydraullic cable puller, but even then the outsome would be a bit of a
risk.

Is there a reason why you can't employ mid-run pull boxes?

Harry C.