Hi all, Have recently moved into our lovely big victorian house but as you may see on other forum topics it has a few problems as most victorian houses do!! I am about to fit a mixer shower which I have done before and have no issue with but there is an issue with the stopcock, I have looked through the survey and found that it is located in a panel in the downstairs toilet wall, I have tried to attach a photo but cant figure it out, have added it to albums though so you should be able to see it and am assuming it is the big square drive tap, I need to turn it off to fit the shower taps and have tried a good set of grips on there after a few days of wd40 and it doesnt want to turn, obviously I dont want to force it so am wondering what the next step is, I need to know if this is defo the stopcock and what to do next, Dont want any flooding accidents!! thanks.