Hope you've all had a good Christmas! Just before lockdown I had a plumber out to lay new pipework for a radiator I'd hung on the opposite wall to the original position. I'm a DIYer but didn't want my own pipework being buried in screed with expensive floor over the top! I insisted that the pipework were lagged (I even went out to get it to ensure it was) but I I have three concerns with the job: 1) the elbows are very shallow where they've been connected from the old tails, I estimate they'll be about 30mm from the surface once the new screed is down. 2) He ran out of push-fit and so one of the lengths is on copper and partially exposed, I've read that the screed can be corrosive so unsure whether it's best to wrap it (if so with what?) or replace it with push-fit? 3) More of a question, what should I wrap around the copper pipe going up to the new radiator which I can then cut flush once the new screed is down? Thanks a lot!