Flushing PS pump

I'm no expert but I think you can remove low pressure return hose from Pump and feed it into a jug or bucket. Put a rubber nipple over the return tube (low pressure hose) on reservoir. Have someone start the car and as the reservoir gets pumped down add new fluid until old fluid is flushed out. I use tranny fluid in my pump so flushing would be less expensive. I wouldn't use a cleaner ,just new fluid to flush. JMO