Hi. It's 2 am, I'm just home after getting a puncture at 11.30pm three miles from home. I think a nail entered the tread and then came out again. The near side front tyre deflated fairly quickly. I couldn't see a hole on initial examination so I was optimistic that the electric pump and canister of sealant would do the job, but in fact it didn't work at all. The sealant gushed out through a 2mm diameter hole which was near the centre of the tread. I jacked the car up, engaged neutral, rotated t