John from St. Petersburg writes
No, standard Birchmeier sprayers such as the Birchmeier 4 Gallon (15K) Backpack Sprayer should not be used to apply harsh chemicals such as concrete cleaner. Neither the seals nor the other components would hold up to these materials. We do sell other sprayers that can be used for this purpose, such as the Chapin Concrete Sprayer 3.5 Gallon (1949).
Answer last updated on: 03/28/2017
