If the bath tube or sink due to the loose fitting to the drain hole allows water to enter, then restore its tightness is easiest with a rubber fingertip — just need to fit them to the tube.
Recommend to read
“BEAST-MACHINE”
The idea of transporting tanks by road transport arose during the First world war. It was the desire to make a real operational maneuvering tank units — that is, to make a quick transfer...
INSTEAD OF A JACK — A SCREW
"Juice with a jack" — that's what the article was called, published in "Modelist-Konstruktor" No. 4 for 1998. I liked the simplicity and unconventionality of the technical solution...
