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> powdered ferric sulfate (a flocculant) and calcium hypochlorite Are you saying those two components are too expensive on Amazon?..

• Turing_Machine 6y ago
  You could certainly brew your own. I was referring to the fact that Amazon sellers are charging 50 cents to two dollars (!) for a packet that is sold by the manufacturer for 3.5 cents.
  • kevin_thibedeau 6y ago
    Puts it in line with all the other overpriced outdoors gear.