Epson R2000 cleaning cycles

As my R2000 got seriously clogged, after some period with no use, I made a decision, took all inks off with a syringe, put it back to each of bottles and refilled every cart with Piezo Flush. Now I’m running the third cleaning and nozzle checks prints and still some “black” ink coming out. Wonder how many cycles should need to get all ink out of pipelines. Am thinking of leaving Piezo Flush for some few days. Did this before and succeeded. Then wonder how many cleaning cycles should be run to get 100% ink running through its veins again. Thanks. Pablo

The much cheaper way (we sell several hundred of these things a month for a reason).