I just took my daughter to H2O'Brien pool in Parker (Parker and Main Street). It was great! There is a zero entry pool (like a beach) and water fountains, etc. for her to run through. I can take her in the pool area (like any other pool). Kids under three are free, and non-residents of Parker cost $5.50. They have a toddler hour from 9-10am. This is great because it's not crowded and you can spend an hour with your little one with no "big kids" around. At 10am, it is open to everyone. The water was a good temperature, and there were lots of lifeguards on duty.
I am not sure if you're willing to drive that far, but for me, it was worth it! I look forward to the next time we go.