The holiday operator CLC World Resorts and Hotels says a police investigation has found no concerns with the pool or procedures.
Police are examining the pump system of a Costa del Sol resort swimming pool in which a British father and two children died.
They are reported to be a nine-year-old girl, her father, 52 and her 16-year-old brother.
They were found unresponsive in the pool at Club La Costa World on Christmas Eve.
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