I asked this question Why did car go quiter and cut out after fuel change? and somebody mentioned in the comments that I may have used watered down gas. This seems plausible and I did think the fuel seemed a bit watery as some of it sprayed near the fuel cap.
The comment said I should just add normal fuel and run the car problem will go away however a quick internet search says the water may have damaged filters etc.
Should I just add more fuel and run or is there anything else I should be aware of/might anything have got damaged?