PoolForum abbreviations 2011 => DE, TA, CYA, etc.

[airraid1999]

Also all the other abbreveations de,cc,tc,cya,and so forth can you explain as i think i got all but de? Also my test kit should be in in a day or so what is perfect water ? Thanks ahead of time 21 round 52" deep 250# filter with a recent sand change,liner happy bottom and wall pad 5th year wanted to start new with a better liner am going to try this bbb method but would like to know terms as i go forth thanks!