Jonathan Ireland
Hi there Shuva, as long as the drainage is tested prior to installing your shower tray you shouldn't have any problems. The shower tray itself will have to be fitted properly, get your builder to make sure that the drainage is correct for installation e.g. Pipe bore and situ. This is vital to correct operation! Unfortunately, if you ever do have future problems with the shower tray pipework, the means of access to this would be resolved from the downstairs ceiling space. But like I have said, as long as the drainage is tested prior to installation you shouldn't have any issues! I hope this helps! JIRELAND PLUMBER
