I know this is a little early in NJ, but I try to be prepared. I have a Hayward Super Pump and understand my plumbing. The water is being pulled from the main drains and skimmer and pushed up to the Multi-Port, through the sand filter and down to the returns.
Q: When blowing out the lines, etc., do you change the multiport to the recirculate position so air will travel and bypass the sand filter? Or should it be placed on another setting?
Q: Should you close the returns first while skimmer and main drains are closed? Or should you push air and close one at a time with the path of least resistance?
With all the reading and video's that I have watched, this is something I have not been able to put my fingers on. Thank you.