I don't use anything specific. My RC washing is usually done with a tray under a running faucet. I print, process, and bring a tray with wet print into my bathroom. With RC, only 2 to 3 minute wash is required. So I wash it by hand and inspect the print while I'm at it. Then to a flat surface with a towel. Squeegee and inspect again.

It gives me time to really check the print before making another one.