Safe for septic systems. Dissolvable wrapper no more foil to throw away. No residue. One Handed Design with Snap top tub Durable Container contains tablets with no need to unwrap so there's no mess or fumbling with zip top bags or wet cardboard under your sink. No need to pre-soak or pre-rinse with Powerball that powers away tough grease and scrubs away burnt & dried-on food. Pre-measured dishwasher capsules so there is no waste.