Your help would be great!
1) I ordered 3 25lb buckets of this stuff. Is this the right product?
Boric Acid, 25 lb - FREE SHIPPING
• 100% Pure Tech Grade
• Granular Form
• Free Shipping via Priority Mail large Flat Rate Box
2) They have a food grade boric acid. I did not order that one. What is the difference?
3) My pool doesn't have a true deep end. It goes from 3.5ft to 5.5ft to 4ft and is 40 feet long. How do you recommend I add the boric acid?