I believe the reason you can't usually see your reflection in a swimming pool has to do with a lot of different factors, including the chemicals in the water, depth, lighting, and movement of the water. read more
If the water is moving, like from jets or bubbles, it is much harder to see a reflection because the angle of reflection is changing constantly as the water moves (imagine throwing a stone into our hypothetical pool above—you can't see your reflection again clearly until the ripples fade). See the diagram above for diffuse reflection. read more
If your pool is made of concrete, use a steel brush but if it is a vinyl pool, a nylon swimming pool brush is recommended. Here are some methods you could use to get rid of algae nuisance in your swimming pool. read more