Hello I am building concrete sump and tank is going to sit above the sump wall with metal frame, I want to add 2" pvc through the cinder blocks so that I can use return pump and connect the pump to the pvc pipe, are there any special steps to do this or I can just drill hole in cinder block and run pvc through and pour in cement in the cinderblock while pipe is going through the cinder block, I just don't want to do it wrong, Thank you and love your build