Whats the best way to prune and train grape vines?

[roitelet]

im getting a 30 year old grapevine which has loads of bunches its growing inside a greenhouse which has 2 be removed can i take it and put it in my conservitory will it live its potted in a 2ft sq concrete block please help phil

If the vine is that old it has a huge root system and you may kill it by moving it. Take some cuttings before you try to move it. A 2ft square concrete block is a bit small for a big vine. Can you put the root outside and lead the rod into the conservatory?