acid e g sulfuric acid but normally the ph will be raised not lowered and it if is to be lowered more of the dicarboxylic acid mixture can be used instead the liquid cleaners can be manufactured by mere mixing of the various components thereof with orders or additions not being critical however it is desirable for the thickener to be first mixed with the water various water soluble components to be mixed together into the thickener solution the oil soluble components to be mixed together in a separate operation and the two mixes to be admixed with the oil soluble portion being added to the water soluble portion in the water with stirring or other agitation in some instances such procedure may be varied to prevent any undesirable reactions between components for example one would not add concentrated phosphoric acid directly to a dye but such additions would be of aqueous solutions preferably dilute of the components the cleaner may desirably be packed in manually operated spray dispensing containers which are usually and preferably made of synthetic organic polymeric plastic material such as polyethylene polypropylene polyvinyl chloride pvc or polyethylene terephtalate such containers also preferably include nylon or other non reactive plastic closure spray nozzle dip tube and associated dispenser parts and the resulting packaged cleaner is ideally suited for use in 34 spray and wipe 34 applications however in some instances as when lime scale and soap scum deposits are heavy the cleaner may be left on until it has dissolved or loosened the deposit s and may then be wiped off or may be rinsed off or multiple applications may be made.