The hot water tap in our bathroom sink is always spins round when using it, ie its not tight enough under the sink.....I have tried by hand, but I think one of these Tap Spanners is needed. These blue coloured ones seem to be the popular one, and are 13mm/19mm are these the ones to do the job properly......
http://www.ebay.co.uk/itm/Basin-Wre...DIY_Materials_Plumbing_MJ&hash=item2c813547bb
http://www.ebay.co.uk/itm/Basin-Wre...DIY_Materials_Plumbing_MJ&hash=item2c813547bb
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