Hi, I have been unable to use my kitchen sink and washing machine for three weeks now as I have a leak that is causing damage to the downstairs flat. I rent and I am waiting for my landlord to fix the leak but it is taking ages. I have to use a launderette which is costing me money I can't afford. If landlord delays things further am I within my rights to knock off some of my rent from to cover the excess money I am having to pay in launderette fees. Also how long is reasonable to be without a usable kitchen sink? Any help much appreciated. Thanks