MADE THIS SPREADSHEET UP TODAY. ITS FOR THE WHOLE YEAR OF 2012 TESTED ON A WEEKLY BASIS ON SUNDAYS. JUST INPUT YOUR READING AND MONITOR YOUR WATER EASILY AND YOU CAN GO BACK AND COMPARE WEEK TO WEEK...
HAS COLUMS FOR LIVESTOCK ADDED, SUPPLEMENTS ADDED WATER % CHANGE, PH, NO2
, AM, ETC...ENJOY GUYS
heres the link as this site wont let me upload excel sheets
click on link and then go to top right and click download original and it will be downloaded in excel format