Drain Field Cleaner · Super Concentrated All Organic Digesting Enzymes · 48 Week Supply · Just Add Weekly To Toilet And Flush Away For best results make it the last flush of the night · Will Jump Start Digestive Bacteria In the septic tank overflowing Into the drain field helping to break down clogged Bio mats This is 4 times the amount needed for normal septic maintenance Normal systems with reliable drain fields need one monthly treatment. · Breaks Down Oil, Grease, Paper, Drain Field Bio Mat · All Natural , Non Toxic Directions: Add 1/8 cup to the toilet weekly flush and your done! Net contents 6 Cups !FREE SHIPPING! 24r45 Free Shipping to all US States And Territories Free Shipping To All US States And Territories Flush and Done