A few days ago I the was driving to the local 7-11. It was trash day and the trash had not been collected yet. I saw, next to someones garbage can, a Hayward pump and sand filter. I went to the door to ask if there has anything wrong with the equipment. There was nobody home so I loaded them up in the back of the pickup. I tried to contact the folks the next day and there was still no answer at the door. I came home and plugged in the pump for a few seconds and I could feel that the pump was pumping air. Hmm. This could be a nice find here. Today I touched base with the original owner and asked him if there was anything wrong with the equipment. He gave me 2 thumbs up and it all works. He said the filter hasn't had a complete season on it. It's practically brand new. I have a 14' Intex AGP with their small sand filter setup. It's 2 seasons old and works fine.
So here is the question: What should I do before placing the Hayward stuff in service besides greasing the o-rings and refilling with sand?