We had an old sump pump that was working okay, but thought we should get a backup. We contacted Greg Bauer several times with questions after he came out for the initial estimate. He was very knowledgable and even told us of someone to contact if we wanted to try and have the old pump rebuilt. We decided to keep the old pump, but put in a submersible back up. When they pulled out the old pump to move it to allow room for the backup, it turns out the bottom was all rusted out and couldn't be reinstalled. They promptly told me this and asked how to proceed. We went with just the new pump and no backup.