Lol u ever see the crust drip clean leaves when it dries?
Tap water leaves crap behind when it dries too...
Pretty much anything will clog a blumat line. In fact just dirt or air bubbles in the tube with pure ro will clog them.
I know what they look like. I mix both peKacid and agsil to make dripclean and silica. There are 4xs as much powder to make the agsil in a liter and the recommended dose per gal is 10 times higher than peKacid. I know what the heck was clogging my lines. Adding silica did NOTHING for my plants. If you like it fine, I already said you can have my share of it on earth lol