I don't know if it will effect sublimated printing but Clean AF totally works - I just got it and DD's filthy orange stained pants came out looking BRAND NEW
Electric power washer. I can have an entire weekend of white unis clean in about 5 minutes. No soap, no pre-treat, no scrubbing anything. I just throw them on the driveway and spray using the widest spray pattern with normal water. There have been many times we were on the field and my DDs bright white uniform was so noticeably brighter then the rest of the team it was almost distracting.