Originally we were called out because the pool pump was not working. It was really old and the customer decided to have it replaced. We installed the new pump and we called back out a few weeks later. The customer liked the work we did and they wanted to have their filter replaced and their automation system upgraded so we put in a new filter and we took the opportunity to clean up the pool equipment quite a bit. They had what used to be an old Pool solar heating system that we completely removed. We also took the opportunity to install a check valve between the heater and salt cell, which was not there before.