Thanks for that, but is the condensation trap the bit of pipe that goes outside? (can you tell I'm female??) It has been very cold the last few nights. I have felt under the boiler where all the pipes come out and nowhere is wet. If the trap is that bit I'll go and have a look to see if it is...
The last few mornings I have found standing water beneath my boiler on the worktop (sited in a cupboard in the kitchen with worktop in the cupboard too). At first i thought it was splashing from the kitchen sink, but the water was actually in the cupboard and leaked through onto the worktop...