Quote:
Originally Posted by RayR
This experiment started in January when I was wondering how Diatomaceous Earth would work as a seed starting medium. . . . I found that Moltan makes the same DE product sold as an oil absorbent called UltraSorb which I found right down the street at the local AutoZone in a 15lb bag for $5.99. The only difference between UltraSorb and the kitty litter was the granule size, the UltraSorb is a much less coarse granulation (more like coarse sand), which was easier to work with. . . .
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Is it correct that these are the same product you are using, but in 5 and 25 lb sizes?
http://www.oreillyauto.com/site/c/de...word=ultrasorb
http://www.oreillyauto.com/site/c/de...word=ultrasorb
I was somewhat puzzled about the dramatic difference in cost per lb, and the fact that the 25 lb bag specified no warranty while the 5 lb bag specified manufacturer's defect warranty. The only defect I could think of that would apply would be if the contents were something other than specified . . .
Also, I noticed that the oreillyauto pages refer to the 5lb bag as part number 0830, but the url for that item shows 8804, which matches the flyer from moltan.com
http://www.moltan.com/Products/absorbentsDE.htm
Not sure if you can shed any light on this, but I knew you had researched it, so thought I'd ask. If I try this I'd like to get what you've already found to work well. And when I began using food grade DE to make life miserable for bugs, I researched that quite a bit and was surprised how many significant variables there were in getting the right DE.
One thing that occurred to me, I did find that food grade DE had been tested and found to be harmless to earthworms, but I don't know about this coarser grade -- did you find anything on that?