We are building a swimming pool in our backyard for our kids to learn swimming and have some fun. We hired a pool builder from Toronto named Solda Pools. The pool is looking good as of now. But we are a little worried about the algae presence in the pool in the future. Does algae occur frequently in swimming pools. Is there anything that can be done at the time of pool building to prevent future algae growth? What all precautions should be taken to prevent them?