have a drain connected that runs under the driveway leading into the garage. ITs a 3-4" drain. I need to add something to either connect into the existing one (I have photo enclose) I need it to go about 6 ft into the existing pipe, or put in another lil trench line so water will not puddle up near the garage door and cross the reground asphault drive. Can I hook a pvc pipe 6' into the existing line and carry the water that way? Or can I put pvc across the drive where in the photo i made a lil trench to get the water across so it wouldnt puddle last night. help me out I want to do this as simple as possible thanks.