This B.A.C. Final Solution ensures a fast fermentation of all waste substances around the roots/root hairs. By stimulating specific groups of micro-organisms, these will start producing enzymes. These enzymes will ensure that waste substances present in the tap water such as chlorine (Cl) and sodium (Na) are bonded. This means that these (harmful) waste substances no longer influence the EC value in the root environment. Your plants can now freely absorb all useful nutrients of the B.A.C. PK Booster. This product is also very suitable to upgrade your substrate. Store in a cool place and never add enzymes when using these organic products!