A Jacuzzi Whirlpool Bath, Name - Tara, Model #8450000 (Ser - K21031) was in the house we bought January 2014. The previous owner said all instructions & manuals were left for everything but there is no manual for the hot tub. It currently doesn't work, drain leaks and there's black stuff being circulated by the jets. We're afraid to use it without knowing more. PLEASE please help us. Thank you so much, Amber Sloop