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If the stone lining was nice & tight when it was first laid down, and capped well, I bet water could get through it nicely without picking up much "gunk" at least along the 100 yards or so til its destination. The natural clay there on site doesn't get scooped up too easily by flowing water. Sand would, but clay kind of wants to stay put once it's packed down into the ground.Justin-T wrote:"...Wouldn't that just get it "dirty" again?
Holy wow! The Winshields one is nothing but a big ball of gray. The other two little better. :(mooseandhobbes wrote:I've just seen Justin's tweet. Rained off again. The weather webcams tell a sorry tale :'(