I inherited my pool robot when I purchased my house nearly 3 years ago. I received no information on how to use it nor any maintenance that needed to be done. I thought I took a picture of it this weekend so that I could remember the make and model, but in looking at my photos on my phone, I managed to get just a picture of my foot. Looking online, it appears to be similar to many of the Dolphin models. I have no idea how old it is, but it does work at picking up the leaves, bugs and grit on the bottom of the pool and it makes it way all the way up the sides to the water line. My question is, should this thing be cleaning the algae off the sides and bottom? I have run it multiple cycles, but it doesn't do a good job with the algae. This isn't tough algae either, a swipe with the broom, and it is floating away. Should I expect more? Thanks in advance.