leaking tap

My tenant reported that he was unable to turn off the hot water on the mixer tap so was having to use the stopcock each time. I was hoping I could open it up to look inside but the unit is secured by a tiny nut that I have no idea how to get off (see photo). Does anyone know if there is a...

Our kitchen tap is leaking. It's a mixer tap and it's just the hot tap that has the problem. It's also very hard to turn it off. I'm guessing a rubber seal has perished inside. The cheapest new tap of the same kind I can find is £55. Should I go ahead and buy one of these or call the...

Hi guys, I had a drip from my Deluxe chrome monobloc tap. I fixed it by removing the cold tap side and replacing washer. Now water is leaking from bottom of base. Shining torch at base and switching on tap you can see water leaking from the base. I've attached a photo. How do I fix this...

Hi guys, I had a drip from my Deluxe chrome monobloc tap. I fixed it by removing the cold tap side and replacing washer. Now water is leaking from bottom of base. I've attached a photo. How do I fix this please? Thank you.