Darn the things you learn in life ...
The pipe that connects the toilet reservoir to the toilet seat is leaking at the bit that joins the reservoir and the downpipe
I am thinking the blue detergent bar I put in the reservoir may have something to do with it
Can I just undo it and put plumber tape and rescrew or shall I not try?
Any help is appreciated!
edit: pix is view looking up from below
the pipe is coming out of the bottom of the reservoir
leak is from the screwy thing you can see