my bottom drain and one of the skimmers are closed off (I was told by previous owner that the pool moved at some point and damaged the returns) so I am down to one skimmer as the only suction line. I feel the circulation is not very efficient without the bottom drain (pool is 9' at the deep end) and there are dead zones. Is there a device that plugs into skimmer and splits into a (freestanding) bottom drain and a surface skimmer?