Hello, HTH, and glad you are with us.
Rick, I have been told to always add de-chlor. Even if you don't need to dechlorinate the water (chlorine breaks down quite quickly on it's own), the chemical additive will help in other ways, by getting rid of chloramine, amonia, nitrates, and nitrites, all of which build up and do NOT break down or evaporate like chlorine will. Over time, they can build up to dangerous levels.