Today I am installing a plumbing bay in the workshop with an electric boiler, unvented cylinder, 2 radiators and 2 underfloor circuits and manifold. Our level three students are going to be working on controls so I put in all the pipework and leave gaps where the controls/pumps have to be fitted and wired in to a board they have made up. Then they go live with the system and see if it all works.
I already have one bay set up for this but this year the group is larger than normal so I need the extra facility to prevent a bottleneck on the course. All pretty standard stuff really but I like doing these installations as the conditions are good.