Wow....dodged a bullet! grin
I wash down bags, no special treatment, no big deal, whenever. They can handle it. Think what a goose goes through. LOL
Tents...not so much. They have coatings that can't stand heat or solvents. The seam sealing tape is heat applied and peels right off if you wash it wrong. Garden hose in the back yard....all you need.
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paul, texas KD5IVP