Hi Janet,

All excellent advice, thank you so very much! I'm in central Alabama (a transplant 8 years ago after 47 years in my native Minnesota). As I recall you're in Louisiana and keep a CYA of 100 because of the nonstop hours of full sun on your pool...funny what things stick in our minds (assuming my memory is serving me correctly). Of course these days the mention of LA--at least coastal LA--conjures up very sad thoughts. Tragic beyond words.

Thanks again for confirming my thoughts on the backwashing and shocking! And I'll "see" you around the forum!