We obtaineda hot tub for my brother, it is a Water's Edge hot tub, which is missing a pump. The issue is I cannot find a way to contact the Mfg, seems they went out of business and we do not know what model the tub is or anything else. We believe it is 10 - 15 years old and looks like a Serenity model, we have a serial number but that doesn't help much. Does anyone have any information on Water's Edge models, the pumps or anything else?