I can't see the pics, but I have a spray bottle with neat Virosol in it . Spray up the brush with Virosol, rub on worst looking area first, then turn your water on half a turn ( I use Gardener tap) then go over rest of dorma as it suds up. Do another next to it the same way. Then go back to first one and give those shoulders a good burn up, rinse off. Next.