The bottom thingy is the pump....and they are a nightmare to drain without getting water everywhere, last time I did it, I used a little takeaway container and kept tightening the filter back up and emptying the tray....took forever and still spilt water but not as bad as the first time I did it!!
Walked the dogs, we are all now filthy.
My friend Rob who sent me the rood pic messaged me today and asked could I talk..I said of course so he called me, apologising for the photo and I said it was o.k but I don't need a repeat. He said I have always been on his radar and still am, I said his radar is broken lol