Types of DE-Please Advise

[Granolamom]

Quote:
...that's the kind I get at the garden supply store. Carl Pool's is not a pool supply store, it's the manufactorer's first and last name.

 

[spook]

Now, this is probably not correct, so don't quote me- please!!!
But DE that is used for non-food use is from dehydrated salt water pools and the food grade is from dehydrated fresh water pools making the size of the little buggers smaller and able to be digested easier. Now, I believe these things are tiny...