@Jay_and_Kat - (I wrote the “How to Dewinterize and Sanitize” document intended for the 320 with Nautilus with a 19 gallon fresh water tank. At the time, the Bypass Valve was a separate valve. I may … (View Post)
At worst, the fresh water tank will not completely empty when you are done sanitizing. As long as you have rinsed out the bleach water, you can then open the fresh water tank drain valve and move it … (View Post)