Okay, so that's the first step. So you got a nice clean sink here so what you want to do is you want to make sure your water has been running long enough so you got some nice warm to hot water there. Now that I have. It takes me a few minutes to get hot water in my bath room because of course the hot water has to come upstairs to down stairs. So give it a few minutes. Once it's nice and warm, close the plug and put a cap full of disinfectant in your water. Even one cap full, you'll be surprised, is quite a strong smell. So just work that around in your water. You want to have about a 1/2 of sink of water because if it's too diluted, you're going to lose that power of that disinfectant. And that's want you want. So what you want to do is your cloth nice and wet and then you're going to go and wash down and disinfect the walls in your shower.