Sounds like the water level is level with the rim exactly because of the underside of the lip where the water enters the bowl is the exact same height of the rim. Apart from extending the rim of the bowl higher you could also use the U seals I linked in the other post to extent the lip downwards if it can be clipped on at the opening from the reservoir meaning it will fill the bowl with less water. I think that’s how fluids and gravity works anyway…
No problem. You reminded me that I should sub to !whatisthisthing@lemmy.world as I missed this from the other place.