3 in. x 10 ft. Corrugated HDPE Perf Drainage Pipe - Made from robust, high-density plastic, this product is durable enough to resists corrosion and abrasion. Its deep-bell coupling is spun-welded. - THD SKU# 137642
Clapp's Home-Made Water Filter. this filter is composed of the simplest materials - sand and charcoal. The filter is arranged from a 50-gallon wine cask with a false bottom, perforated; on this a layer of gravel, then alternate layers of charcoal and white, clean sand, and top layer of excelsior, with perforated cover ten inches from the top, and a discharge-pipe or over-flow four inches from the top.