50 people coming to the house this weekend. I thought I'd clean the decking as a bit dirty. I'm an idiot and used fairy liquid and boiling water and scrubbed it with a hard brush for ages. It's now nice and clean but SO SO slippy. Don't have time to repaint and couldn't with it so slippy anyway. Any ideas how to get the slippiness away. Salt? More hot water? Bleach? Please help or I'm gonna have a lot of people falling over and getting angry. Thanks!!