Ok, I'm VERY new here!! My pond filled up last year and the clarity has been lacking (clay bottomed @ 25' max depth). Is there a time frame necessary to wait before one applies alum?? I have "runoff" from heavy rains which run through the pond, would this constitute periodic reapplication?? Runoff is buffered by 100 yds of prairie grass (waist high). Sorry for being so stoopid but you folks have the knowledge and experience and I wish to borrow some! If there is anything you need to know about laser engraving----I'll step up to the plate in return!!!
