There was little call for popping corks at Bristol Water HQ last week. The company may be set to pocket £20 million more than Ofwat would have allowed, but at £429 million, its wholesale expenditure is still significantly below the £537 million it asked for. If the provisional rulings remain unchanged in the Competition and Markets Authority’s (CMA) final analysis, due in September, Bristol Water will have won a small victory at a great cost.