Our pump (which was awesome) finally died yesterday after 8+ years. I don't know the first thing about shopping for a pump so I am hoping someone might be able to give me some guidance/recommendations/info. 
Our last pump was a Hayward and I think the model info has worn off over the years. I'm attaching pics of the only info I could find on it. Our pool is an inground 16 X 32. I estimate it to be about 21,000 - 23,000 gallons.
Also wondering if I should still put some chlorine in? Or should I forego it since it can't circulate?
Thanks in advance for any help!

Our last pump was a Hayward and I think the model info has worn off over the years. I'm attaching pics of the only info I could find on it. Our pool is an inground 16 X 32. I estimate it to be about 21,000 - 23,000 gallons.
Also wondering if I should still put some chlorine in? Or should I forego it since it can't circulate?
Thanks in advance for any help!