Does anyone see a problem connecting two pumps to the same discharge pipe that exits the house? I would place a check valve at the top of each separate pipe right before the connection to prevent the water from flowing through the opposite pipe. I don't intend for both pumps to ever run at the same time. One will be set higher than the other as a backup should the first pump fail. However, the pipe that exits my basement is actually a 2" pipe and both pumps will have 1.5" discharge pipes so I suppose both could pump at the same time if necessary. Thanks.