I have always wondered about the rationale behind combining white vinegar and sodium bicarbonate to perform household cleaning jobs, and to unblock drains. I would have expected white vinegar to act well on its own as an acidic cleaner, and sodium bicarbonate to act well on its own as a base cleaner.
Does combining them not simply neutralise the potential of each to perform its job?
The same combination is often recommended for unblocking slow drains. Again, depending on what is blocking the drain, I would have expected that an acid or base would act well in isolation. And given that hair and soap are the likely culprits, I would have anticipated that sodium bicarbonate, a base, would be the more effective.
What is the justification for this? Is it, perhaps, the mechanical action of the carbon dioxide produced that is intended to lift whatever is blocking the drain? Or is there something else at play?
Thank you in advance.