any one heard of/ used steri-fab for house washing???

[any one heard of/ used steri-fab for house washing???]

a family member was a property manager for a H.O.A. they put the complex out to bid. A contractor from Conn put in a proposal to use pressure was the buildings that are vinyl siding the contractor said he was going to use Steri-fab to kill the mold and mildew and was going to give a one year no re growth warranty . does any one have experience or ever heard of this?

[calabrate down chemical injector]

Does anyone know of an accurate way to measuring the flow of your chem injector. I work with several machines and am always changing injectors. with the price of detergents rising no one needs to be wasting them. is there a gauge or meter that i can hook up to the machines to measure the flow.