Quicklime doesn't actually dissolve bodies
@msobkow "Now what you need is a good tub-destroying acid like in Breaking Bad. :) "
But do bear in mind that gallstones, dentures and implants take longer, and don't dump the remains in the garden ala Acid Bath Haigh.
Somehow I suspect Simon has a well-thumbed copy of "Forty Years of Murder" in his bookcase...