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piston or diaphragm pump for bp sprayer

Discussion in 'Pesticide & Herbicide Application' started by Island Lawn, Mar 7, 2001.

  1. Island Lawn

    Island Lawn LawnSite Senior Member
    Messages: 632

    Just wanted to check if there is ever any use for abrasive sprays or wettable powders; therefore creating the need need for a back pack sprayer w/ a diapragm pump.

  2. GreenQuest Lawn

    GreenQuest Lawn LawnSite Senior Member
    Messages: 822

    I would go with the diaphram any way its usually not much more. I have an add on service for things like wasp and hornet nests or carpenter ants Ect. I bought a solo piston pump and without thinking sprayed a wettable powder Insecticide threw it. Well then i had to buy the upgrade kit which turned out to be more in the long run than buying the diaphram in the first place).
  3. Island Lawn

    Island Lawn LawnSite Senior Member
    Messages: 632

    Thanks Greenquest. I was thinking of getting the piston over the diaphragm. I thought there was an concern about the drift issue and the droplet size.
    But I also understand that those fancy brass nozzles are fully adjustable for any spray pattern...

    Then why two different pumps?

    Now I really know that I dont know!

    Any info to help straighten me out?

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