How to clean crud between twin-wall poly???

10 years ago

The top poly panels of my HFGH have gotten dirt and maybe algae in between the panels. I have tryed spraying jets of water in the tiny hole openings, and it seems to work somewhat- but then the crud comes back right away. Does anyone have a way to clean these panels? Should I get new panels and tape them so nothing can get in? If so, how much are they and where are they sold?

I am sorry if this has been answered in another thread. I spent and hour reading different posts about HFGH and poly panels, but could not find a good answer to my problem.

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