I have noticed over the past two years that algae is a consistent issue. I have to brush a minimum of every three days and shock weekly to keep things in check. If I do this my water stays clear and I have minimal algae growth...can barely see it when brushing. Is this normal?? I do have a decorative 400 gallon pond right next to my pool...literally two feet away from my pool with a small stream and waterfall acting as my pond filter. Could this be a constant source of algae spores to the pool?? I'm thinking this is the case and I will just have to deal with this issue or get rid of the pond...