Quote Originally Posted by waterbear View Post
The Taylor DPD powder (same stuff Leslie's sells) is an exact replacement for the DPD powder in Ben's kit. The only difference is the scoop that Ben included is larger than the Taylor scoop so with Ben's scoop you only need 1 but if you use the Taylor scoop you need 2 scoops of DPD powder.
Waterbear: I recently ran out of Bens FAS-DPD powder and was able to purchase the Taylor R-0870 at a local pool store. The package didn't have directions, and I'd never heard that you needed two scoops of the Taylor DPD, other than I noticed the small size of the scoop. I noticed Bens powder was different - it was a mixture of powder (tiny tiny crystals) but also had noticeable crystals. The R-0870 was all powder. Anyway, I continued to use 1 scoop with the R-0870 until I read your post and ran out to my hot tub to check it. I tried with one and two scoops and got the same results...??

Why did these powders look different?