Sunlight Prime Powerful Sink Drain Cleaner Magic Bubble Bombs Chemical Powder Powder Drain Opener  (100 g)

Instructions:pour about boiling water in to the drains(Especially in the cold winter),this step is very important,the enzymes need to be in warm water to fully function,then pour the Cleaning powder into the slot.wait about 30 minutes,then pour large amount water,the drains can easy open,if severe clogging, please use double of the amount and wait more time. It won't harm your drains, pipes or septic system, as its made only from non-corrosive & non caustic materials.for 5x Cleaning Made of a non-corrosive formula that is safe on septic systems.