hello Everybody ,OpenStreetMap is fantasic!

Welcome! Looks like a great edit to me, although I think someone actually added that swimming pool already. Is it called 'Uittamon uimahalli'. Someone's put a node a little further to the north: osm.org/browse/node/267181235 They have the name and another tag sport=swimming. In fact your leisure=swimming_pool tag is better/more important.

My recommendation actually would be to put all of these tags on the way (the outline of the building). If you copy all the tags onto there, including the name tag, then you could delete both of those nodes.

But anyway... Welcome to OpenStreetMap! Keep at it!

Thanks alot Harry! I thought the information was missing since I saw no icon on the map. At least that got me trying to edit OSM... Cheers!

I completely agree with lonehorse above!

Yeah! Edit more more more!

By the way, there's another style of map rendering available as a separate layer, called 'osmarender'. As it happens this shows sport=swimming and leisure=swimming_pool tags, with swimming icons. So you can see here a swimming icon showing up from the other node which was on there already. This layer doesn't re-render very quickly after changes are made to the data though. Not sure how long you have to wait. Maybe several days.

I now tried to move the tags from the 2 nodes to the way and deleted them nodes.

Hmm... layers... Oh yes, there I can see the swimming icon... but looks like that osmarender doesn't show the k-market visible on the default layer a wee bit southwest of the swimming pool.

Thanks for all your help, I'll try to learn this beast. Fun stuff! :)