Norm,

I have four in a series. One more thing; Make sure your top bucket is secured well. Along with the handle I use plastic coated clothes line to reinforce it, as this year I had the handle pull out and partially collapse the column. In my case, iron builds up over time in the plastic media and weighs the buckets down. In late fall I remove the column and remove the iron from the media with muratic acid. The I store the column for the winter.

If pigs could fly bacon would be harder to come by and there would be a lot of damaged trees.