You may be feeling pretty smug about getting your swimming pool successfully closed for the winter season. The lovely hours spent in the sunshine by the pool seem like they happened ages ago. It will be months before you have to deal with anything having to do with your pool, right? Don’t get too cozy in front of the fire just yet. Has the question “Do I need to test my pool water in winter?” ever occurred to you? Let’s take a moment and examine it. What do you think is going on under that pool cover? A few extra steps taken during the winter could make a big difference when you re-open your pool in the spring.