I should have titled it poo sticks. I was filling the tank earlier and had about 50L till it reached full. It was trickling in and then I decided to make a phone call to another windy whilst keeping an eye on the water. Phone call ends and I go in for me tea. Chicken and new potatoes it was. Finish that and decide to go outside for a smoke. What's that noise? Oh it's the tap running. You can guess the rest.... What a numpty haha.