Opened the pool earlier this week, heated the water to 63F and turned on my SWG to check the salt reading etc. When it generates, I'm getting the milky water from the return jets or main drain. I did a search and read that it is likely hydrogen bubbles, and they do appear to be bubbles. Problem is, this is year three with the pool and have never had this issue before. I don't have a multi speed pump. The salt cell looked good before it was hooked up. Any other ideas?