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The float mechanism works perfectly. The water outlet never stops, it constantly runs and we had to close the stopcock to avoid waste. It is a mezzanine floor, the internal patio drain does not clear and the downpipe is poorly constructed, we believe the entire installation needs changing. Every time it rains, we get flooded. This is a communal work, we need a quote for the community president. It is an old backpack cistern; the flat is from the 1960s. Two years ago I replaced the flush valve with a new one (the blue and white plastic type). Now it leaks into the bowl and the tank seems to never stop filling. The stopcock is next to the tank.
