CONNECT TWO PIECES OF SLOPING PIPES IN DEFFERENT DIRECTIONS

1. PLACE A 90 DEG ELBOW ALONG THE UPPER ELEVATION PIPE FIRECTION. MAKE SURE IT IS ALINE TO THE BELOW ELEVATION PIPE. SELECT DOWN DERECTION WHEN IT PROMTS TO DESIGNATE THE RUN DIRECTION OF THE ELBOW.THEN ROTATE A PROPER ANGLE AROUND THE UPPER ELEVATION (45 TYPICALLY. I try other angles. It turns out that 45 is the most reliable angle since it will be connected to a lateral or 45 deg wye tee.)
                
                
2.PLACE A 45 DEG WYE TEE (LATERAL) ALONG THE BELOW ELEVATION PIPE AND MAKE IT ALINE TO THE RUN PORT OF THE ELBOW IN STEP 1.
                
                
3.CONNECT THE LATERAL AND THE ROTATED ELBOW USING PIPE FUNCTION.
                
                
4.MEND ALL COMPONENTS TOGETHER.