Wonder if you're putting in too much chlorine or not enough of something
else in your pool or spa? Why does your pool keep going green on you? Stop
guessing! Drewnowski's Service Team gives you precise instructions on how to test your pool's water based on your pool's unique chemistry.
Click this link to watch Scott Howell, Service Manager, in action:http://www.youtube.com/watch?v=ktuB7b-JyB8&feature=youtu.be