I have a small pool 13x33. 2000 gal.
First of all, are you SURE your gallons are accurate? I have a 15x30 pool and mine is 11,000 gallons at 45" full. You say yours is a 13x33 pool. How deep is it? I can't imagine it being only 2,000 gallons. Double check the gallons accuracy first and then go from there. Good luck!