Good day all, i am from South Africa and would like to know more about soft washing. I have been doing research but getting a lot of conflicting information. Here in SA. are no soft wash suppliers so all my info. is collected from the web. I have started making up a skid and found a Delavan 7870 12v pump and the following nozzles ,0015 1515 4015 recommended by the pump supplier. Chemical i have used 12.5 SH but just cant get it to work properly. I did some testing on a asbestos shingle roof not sure on how to do a proper mix ratio. If there is some one out there that would be able to help me it would be greatly appreciated as i am greener as greenwash when it comes to soft washing. Kind regards Wayne.
