Thank you for the input.I'm sure you are right about the algae bloom and knew it was 23,000 my fault. Test this morning Chlor 4.0 ,PH still at 7.0. I will put more chlor in till I get to 20ppm and keep the level at 10 ppm.
WOW,that means I will have put in 12 gallons of 15% liquid to get the pool up to shock level. Lucky, to have a store close that had the 15% at $3.49 a gallon.
To all of you out there ,don't let this happen to your pool.If your going away and leaving the pool unattented,make sure it's up to shock level before leaving.