this is interesting. I started using added sparkle about 2 months ago, just out of curiosity.
really believing initially that it was a placebo , and just "snake oil "!
however , it really does eat through dirt, bird muck and snail trails.
I didn't use it to go any faster. but it does aid the cleaning.
I always use pure, 000 and go through a bag of resin roughly every 6 weeks ... my tap water is around 75. I do let my water creep up to 005, but have never had any issues.
thanks NWH for sharing this . I may need to rethink things , or flush my pump once a month with vry hot bleachy water!