Hi Steak,
I wet and shower only my own hair daily and my hair system about once a week. When I shampoo my own hair I try to get as little shampoo and water on the hair piece as possible---it's impossible not to get some shampoo on it but I do the best I can. 'Back2Natural' color blender and conditioner from adfhair.com comes in handy if a color issue comes up. This works fine for me.
Regards,
John