Just got my new pool all set up and need some guidance with chemicals and what not. It's a 15ft pool that's 35.5 ft deep and has a filtration system. I bought 3" tablets but the filter system say it only uses 1" so I just cut it up and put it in the filter system as suggested in the manual. That was last night around 10. Just tested it this morning and no chlorine is showing? Just wanting to know where to start to get everything perfect. Thanks.