I heard a podcast with the inventor of star san. The problem with mixing it too strong/weak isn't that it's super powerful/diluted but rather the ph doesn't land right to do the trick.
I would suggest resanitizing with the proper dosage.
1. BCS - Wet Hopped West Coast Blaster
2. CYBI - Gordon's IPA Clone
3. BCS - Scottish -80
4. BCS - Specialty Saison (Gold Medal at BMO)
1. BCS - Janet's Brown Ale (Fermenting)