H.e.r.c. Products Incorporated

H.e.r.c., Inc.

Allen C Hieatt

Jerome H Ludwig

Dennis G Weinhold

A method of cleaning and maintaining potable water distribution systems which have reduced flow due to an increase of water scale deposits, sediment, and the like on the inside surface of the pipe is disclosed. An aqueous acidic cleaning solution is introduced and circulated through the pipe to be treated for a sufficient time to dissolve and loosen the scale and sediment, and the spent solution containing dissolved or suspended scale and sediment is flushed from the pipe to provide a cleaned pipe with improved water flow. It is also desirable to flush the water distribution pipe system with high pressure water after the treatment to remove loosened scale and sediment that was not removed during the circulation and flushing of the treating solution.

Method of cleaning and maintaining potable water distribution pipe

A method for the removal and prevention of scale using a soap composition of a 1:1 stoichiometric ratio equivalent of an acid and a base. The acid, for example, is an organic carboxylic acid or a mineral acid. The base is an amine or ammonia. The organic acids consist of formic, acetic, propionic, citric, glycolic, lactic, tartaric, polyacrylic, succinic, sulfonic, gluconic, benzoic, salicylic, and mixtures thereof. The mineral acids consist of hydrochloric, nitric, phosphoric, polyphosphoric, hydrofluoric, boric, sulfuric, and sulfurous, and mixtures thereof.

1:1 soap compositions of acids and amines or ammonia useful in removal

A method of cleaning and maintaining water distribution systems which have reduced flow due to an increase of water scale deposits, sediment, and the like on the inside surface of the pipe is disclosed. An aqueous acidic cleaning solution is introduced and circulated through the pipe to be treated for a sufficient time to dissolve and loosen the scale and sediment, and the spent solution containing dissolved or suspended scale and sediment is flushed from the pipe to provide a cleaned pipe with improved water flow. It is also desirable to flush the water distribution pipe system with high pressure water after the treatment to remove loosened scale and sediment that was not removed during the circulation and flushing of the treating solution.

Method of cleaning and maintaining water distribution pipe systems

This invention relates to a multipurpose cleaner composition which has been found to be useful in a very broad range of cleaning applications when employed in various aqueous dilutions. The cleaning compositions of this invention have found utility in cleaning applications of low demand, such as cleaning of windows, to those of high demand, such as encrusted stoves or automotive engines and the like. Because the concentrated multipurpose cleaner is readily diluted, it can be marketed in a concentrated form and diluted by the user to the desired concentration for the particular cleaning job requirements, thus reducing the amount of cleaner packaging consumed by a household.

Aqueous multipurpose cleaning composition containing sulfites and glycol

A soap composition for the removal and prevention of scale in aqueous media comprising a 1:1 stoichiometric equivalent of an organic carboxylic acid and an amine base. The organic carboxylic acid is selected from the group consisting of hydroxyacetic, citric, acetic, gluconic, salicylic, tartaric and benzoic, and mixtures thereof. The amine base is selected from the group consisting of monoisopropanolamine, diisopropanolamine, triisopropanolamine, monoethanolamine, diethanolamine, triethanolamine, diethylamine and mixtures thereof.

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Mesa, AZ, United States of America

Allen C Hieatt