Related Clues:
- Unclogging aid
- Corrosive solution
- Caustic drain substance
- Ingredient in a drain declogger
- Drain-clearing stuff
- Drain-opening liquid
- Strong drain opener
- Chemical compound with the formula NaOH
- Dishonest-sounding chemical
- It's used in soapmaking
- It's used in soap making
- Caustic soap ingredient
- Oven-cleaning solution
- Caustic chemical that sounds wrong
- Corrosive cleaning stuff