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John writes

Will Demon WP clog up regular backpack sprayers - unless they have special diaphram pumps?

Answer:

No, Demon WP will not plug up your sprayer, at least initially.  You definitely have to mix wettable powders very well before applying it.  You should fill the sprayer half way with water, scoop in the proper amount of product or drop in the Demon WP envelope, place the top on the sprayer and shake vigorously, then remove the top and fill the sprayer the rest of the way with water.  The sprayer should work fine but you should only mix what you plan on using that day.  Wettable powders will clog a sprayer when the solution is left in the sprayer overnight or for a long period of time.  The powder will settle, become clumpy at the bottom of the sprayer, and will clog the sprayer when you try to re-use it.  So only mix what you are going to use right then and you should have no problems.

Answer last updated on: 09/22/2009

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Demon WP Insecticide

Demon WP Insecticide

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