I live in N.E. Wis (Green Bay area) and purchased a home last fall with an above ground 28' pool. It was pretty green last fall and we never got it clear. However, after taking off the winter cover I could see the bottom. Now it is cloudy and I'm here to fix it.
It has a sand filter and heater. I'm unsure of the HP or such.
Looking forward to learning here at the site.