Can you change the plumbing in an assembled building

Assembled building its main components are basically factory prefabricated, on-site installation, with construction speed, on-site wet work is less characterized by a single building product, so the prefabricated components should be strictly according to the design drawings, block layer prefabricated and pre-buried according to the plumbing and electrical installation diagrams for the pipeline, water supply and drainage casing, pre-prepared holes. Later need to change the relative trouble, indoor wiring vertical should go to the top or go to the ground, borrowing the second decoration hidden, horizontal as far as possible with the help of the original buried pipe, really can not be helped by the use of yellow wax pipe single line single pipe layout in the wall mortar plaster layer. Or the use of open pipe wiring, horizontal with the help of skirting wire bridge hidden, vertical pvc or aluminum alloy wiring groove wiring. The secondary transformation of the water pipeline should also make use of the original buried casing as far as possible, can not be utilized, transverse to the top or ground hidden, longitudinal use of thin-walled pipe using the kitchen, bathroom tile bonding layer hidden.