Change the water when it’s dirty, it’s not rocket surgery.
So fill the bowl with clean water, add fairy, wash item, put on rack covered in soap suds, empty bowl of dirty water, refill with more clean water and more fairy, wash another item, put on rack covered in soap suds, empty bowl of dirty water, refill bowl with clean water add more fairy, wash item and repeat ad infinitum….
vs
turn on tap, add fairy to sponge, wash item, rinse off soap, put on rack..no cracking of mugs (it never leaves your hands) no cracking of sink (item never leaves your hands) repeat to finish…
Washing with another bowl in the sink is an unhygienic and stupid way of washing up, it’s why ever other country in the world doesn’t wash up like this….