Hi RockTeam, thanks for adding this valuable data, and appreciate that you flagged it for review, but I think this needed a little more thought and attention to the OSM Import guidelines: https://wiki.openstreetmap.org/wiki/Import/Guidelines

If you're able to, I would consider reverting the changeset using JOSM and trying again in smaller changesets and in a way that avoids the creation of duplicates in the first place.

Some observations about challenges with the way this has been imported:
- For features that already exist, it would be preferable to edit them instead of importing a new node and deleting the old node/way. This way, the history of the feature is not lost, and duplicates are prevented from the beginning. 
- It may be preferable for this to have been done in multiple changesets to make it easier to review and roll back changes if needed
- The geometry from the City data source appears to be slightly off compared to existing features — for example, see https://www.openstreetmap.org/node/12049910369 and https://www.openstreetmap.org/node/12049910478 
- Your assumptions about applicable opening hours based on the City webpage appear to be incorrect: not all park washrooms are winterized and are open in Nov-Apr; unfortunately it appears that this information is not available on the City webpage and can only be determined by surveying the washrooms in person. For adding washrooms that are not already on the map, I would consider only adding summer hours and putting in a fixme to request someone verify if the washroom has winter hours or not via in-person survey.