Liquid-Plumr Coupon for Foaming Drain Cleaner June 2012 We have a NEW Liquid-Plumr printable coupon for you today!  This is for the new Foaming Drain Cleaner. Save $.65 on any one Liquid-Plumr Foaming Drain Cleaner ….NEAT! Liquid-Plumr coupon When you get to the page you will find the coupon about half way down, just click [...]