After cutting out a section of FlowGuard cpcv pipe with a leaking elbo attached to a T, how do I re-insert the new section into the new sleeves on the ends of the two sections from which it was cut? It doesn't seem like the pipe is flexable enough to bend and angle it into the sleeve. Do I apply the cement on both ends, try to fit the pipe into the sleeves and position it all at the same time?