Years of sediment in my yard drain pipe was blasted away by this, incredibly effective! Used to be filled with so much debris, now it's almost gone!
The drain behaves differently now, the sound is different like it's clear clear.Anyhow, truly this product is one of the rare ones that is ACTUALLY 5 stars. Outstanding effectiveness for the price. Simple to use. Genius in concept.Highly recommended.
The product is designed to expand inside a pipe, seal the pipe, and provide just enough flow to pressurize the pipe behind the clog. It did all of those things perfectly so 5 stars.