Review on KOLERFLO FL-51 12V Self Priming Water Pump - 5.5 GPM & 70 PSI Pressure Diaphragm Pump for RV Caravan, Marine, Yacht by John Roberts

I received a pump that wasn't like the pictures. It has only one diaphragm, not a three-chamber diaphragm, and the minute I turned it, it was spurting water out the front of the pump. I couldn't install it right away, and by the time I was able to get hold of it, I'd missed my return window by a couple of days. So I ran out of all the money and can't return a useless pump. I've owned many vans and used these types of water pumps for decades and never had this problem. The way it was designed prevents it from leaking. Don't waste your time or money.