course

We're having a new patio installed and the builders are doing a great job. However, I'm concerned to see the new level is only 120 mm below the damp proof course in places. The new level also comes about an inch above the bottom of an air brick which doesn't look right and I suppose could...

Evening all, Just a quick question regarding plumbing courses that will give you basic knowledge for DIY (fixing leaks using solder, installing taps, connecting waste pipes, pushfit attachments etc.) - where would I find these? I have had a Google but all I can find is intensive and long...