Non-chlorinated concentrated all-in-one acid detergent and method for using the same

Disclosed is a liquid detergent use solution composition comprising: an acid selected from the group consisting of inorganic acids (such as a mineral acid selected from the group consisting of phosphoric, nitric, hydrochloric, sulfuric, and sulfamic acids and mixtures thereof), organic acids (preferably selected from a group consisting of citric acid, methane sulfonic acid, ethanesulfonic acid, propanesulfonic acid, butanesulfonic acid, acetic acid, hydroxyacetic acid, propionic acid, hydroxypropionic acid, alpha-ketopropionic acid, butyric acid, mandelic acid, valeric acid, succinic acid, tartaric acid, malic acid, oxalic acid, fumaric acid, adipic acid, maleic acid, sorbic acid, benzoic acid, succinic acid, glutaric acid, adipic acid, alpha-hydroxy acids, ethylenediaminetetraacetic acid (EDTA), phosphonic acid, octyl phosphonic acid, acrylic acid, polyacrylic acid, aspartic acid, polyaspartic acid, p-hydroxybenzoic acids, iminoacetic acids, and mixtures thereof), and mixtures thereof; and from about 0.00003-0.0075% by weight of a fatty alkyl-1,3-diaminopropane or salt thereof having the general formula R-NH-CH2CH2CH2NH2, wherein R is a C4-C22 alky I group; said composition having a pH of between 0.1-5.