Preparing pool for opening

Worked on the pool today, vacumn, brushed walls, added chemicals. Going to open it when water temp reaches 70, should be 75 by Memorial Day. I have large heavy duty solar blanket which warms the water into the 90s by July 4, try tomaintain it at about 85, most comfortable summer swimming. Pool is 40 feet long, 14 wide (2 lanes) and 10 feet deep at one end and 3.5 at other. Blown gunnite construction. SNJ6Pilot