Nope - although when the builder gets here he will take most of it out and the end result will be better. In truth adding an irrigation system to a roof in Ireland is already over-engineering. A quick spray off the jet wash is all that is needed if it gets too dry.

Also since I ordered the submersible pump it has not stopped raining ☹️

Of course. As soon as I leave my shop a bus pulls up. As soon as I return the opposite. Must be the same with rain!