I purchased a shurflo pump, bayonet hookup, for my Father-in-Law's travel trailer. It works great. He pumps uphll, 100 feet on a 30 degree angle, takes no more than 2 minutes to empty his tank. It has a flush valve connector to flush the pump and hose. He has used it for 3 years at his campsite in NC. I purchased a 100 ft of flexible hose for him from Home Depot. I am thinking about purchasing one for our Redwood.
John and "Sam"