Hi all! Last fall I had a leak in the return line that was coming into the stairs. We decided to have the concrete in the deck cut and tried to repair it ourselves but ultimately had to call in a pool repair company as the threat of frost was imminent. At any rate, we backfilled the hole to protect the plumbing during the winter and now I have about a 25x25" hole (not perfectly square because the concrete was cut poorly). Further, some expansion joints were cut as well....
One friend told me to put in a large paver and fill in with caulk. What are the thoughts of the forum? What would be the best way to fix this?

One friend told me to put in a large paver and fill in with caulk. What are the thoughts of the forum? What would be the best way to fix this?
