At the risk of personal ridicule its purpose is to leave a gap free in the sink where your plates etc can be rinsed thus not polluting your bowl with cold water, now, time to rearrange those flowers! 
Many things - some of these have already been covered. A plastic bowl is:oneofmylegsisboththesame said:maybe I`ve missed something obvious...
I said it gurgles! A tumble dryer doesn't gurgle!davy_owen_88 said:What are you putting dishes in a tumble drier for?![]()
oneofmylegsisboththesame said:maybe I`ve missed something obvious....but what is the purpose of a plastic washing up bowl![]()
JohnD said:R. Swash