Hello...just joined today! Hope to get alot of good advice/help becuz i just moved into a new house (its an old house but new to me) with a pool and its my first pool! Unfortunately, the pool is a swap at the moment...the bottom piece of the filter cracked and hasn't been replaced for over 2 months, so there's been no circulation or filtering of any kind. I just ordered the bottom piece and hope to have it installed this weekend. Just wanted to kno if i can still use the same water or should i drain and start fresh? Any tips and/or advice will be greatly appreciated. So please point me in right direction. Thanks!