In the Jadam book people use a backpack sprayer, but the engine/pump/internal parts aren't made to handle water with salt. But many JADAM solutions include seasalt. Do you ever have your sprayer or pump get damaged because of the salt? How long does your pump or sprayer last?

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​I am trying to decide on a pump to spray out of a 350liter tank mixed with solutions, but most pumps specifically say not to use with "water with salt in the water." Maybe too much worry....