Forgot to shut petrol cap

[cidergestion]

So as the title says when I filled up yesterday I forgot to shut the fuel cap. Now normally not a problem BUT the car was outside in the heavy rain all last night and this morning so im sure water has gone in the fuel tank. Please guys whats your advice ?

[cidergestion]

Sounds sensible, on it first thing tomorrow. Many thanks

[cidergestion]

Have to be honest, the car is running fine so didn't bother with checking the fuel from the pump or draining the tank. My thought is, leave a hole the size of the filer in the rain at the angle its at, how much water actually went inside. Here's hoping I don't eat my words off to Barcelona next week