I'm trying to run a front load He Samsung washer (13 gallons water per wash) with water from a 18gal tub sitting on top of it. This is not enough pressure to get the water to work. It needs a minimum of 20psi but likely better if we can get a normal home pressure, roughly between 60-80psi. This means I would need to get a pump, but what flow rate for the pump? There are garden pumps with 1gallon per minute rate that runs 60psi. Will this work? I called Samsung and they tried but have no answer as to flow rate. Please help identify what requirement in terms of flow rate or anything else you know that I might have missed for a pump to work in this situation. Why? House burned down. No water source currently, only rain & collected water in buckets. I'm running this off of a generator. It seems the He washer uses less than actual hand washing the clotehs for the family. Thanks!
Possibly a sump pump.
Or, you can get about 8 psi for every 20 feet of height of the tub, such as on the roof or in a tree.
Or you can put it on pause, open the door and pour in the water.
Or you can remove the top cover, and find the vent in the top of the outer stationary tub, attach a hose and fill.
You could get poly drum 20 gallons or larger, or gang together 4 five gallon buckets with gasket lids. Attach a bicycle or auto tire valve stem and a garden hose outlet. Put your 15 gallons water into the drum. Replace the screw-bung so it's air tight then pressurize it bicycle pump. The smaller the air space, the less time to pressurize, but the quicker the pressure will drop.