the first thing you need to do is turn the water off. You should find a stopcock in the bathroom or kitchen for this purpose. However, if you live in an old building, you will probably need to turn off the water at the main (this tap is usually in the cellar or basement). It’s...
If your taps have a water isolation valve, then you should close the valve (by turning it clockwise) to disable the water supply temporarily. If you don’t have an isolation valve, you can use your house’s stopcock instead. Once you have closed the water supply remember to run your tap...