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It's a mezzanine floor, the internal courtyard drain doesn't clear and the downpipe is poorly constructed. We believe the entire installation needs replacing. Every time it rains, we get flooded. This is a communal work, we need a quote for the community president. It's an old cistern; the flat is from the 60s. Two years ago, I replaced the flush valve with a new one (the blue and white plastic type). Now it's leaking water into the bowl and the tank seems to never stop filling. The stopcock is next to the tank. The float mechanism works perfectly. The water outlet never stops; it keeps running, and we had to shut off the stopcock to avoid wasting water.
