Water pumpi

My water heater was three valves. Cold in, Hot out and bypass.

In bypass mode the in and out valves are turned across the pipe, the bypass valve is turned with the pipe.

In working mode the bypass valve is turned across the pipe and the in and out valves are turned with the pipe.

For ball valves the handle is oriented so that when the handle is across the pipe it is closed and conversely when the handle is in line with the pipe the valve is open.

Right now the valve handles for the upper and lower water lines are going in the same direction as the water lines. So that would be horizontal. The bypass that runs vertical, I have the valve handle horizontal as well.

How do I post pictures on here from a cell phone?

I always use the pressurized water connection from my house to slowly push out all the air in the lines and the water heater,
by opening all hot and cold water faucets, even the shower. Letting the water fill all the lines and water heater, then testing the pressurized system.
Then I disconnect the pressurized water supply hose, put about 20 gallons into the water tank, and lastly I test the 12 volt water pump.

At one point I had hot water coming out of the cold water taps.

I don't 100% know which way the valves should be turned to be open/closed

How long should it take to fill water heater and have steady flow?

Fill Fresh water tank, turn pump on, OPEN a faucet to bleed air out and allow pump to prime. (make sure not sucking air from winterizing connection)

Pump can run DRY for days w/o damage......let it run