Ive just filled my boiler after it cut out last night but am getting some slight leaks of the pink fluid?

Well, I ume the pink stuff is from an infloor heat system or hydronic heating? That pink stuff is anti-freeze. No, it is not normal to leak anything from a boiler system unless it is expanding and relieving through an expansion valve. You also should have more pressure than 1 pound. You're probably looking at an issue that needs to be looked at by a plumber. Good luck, it could be several things.