Should I make sure to add chemicals to my pool before closing?

Sunnyview Pools recommends that you check to make sure your pool has the proper level of sanitizer before closing it for the winter months.  If you do this, it will ensure that when you open your pool for the summer season, the water will be clear.  If the cover is still on after the temperature reaches about 15-16 degrees celcius, you might have to add more chemicals to keep the water looking clear.