Thanks for the quick fix. I am able to get this mod to work in Krastorio2 with the Waterfill mod enabled (And Noxys Waterfill disabled). I had to redo the research for Waterfill, and make (and place) new vanilla pumps, but I am unable to place the Stone Water Well.
With the Stone Water Well mod enabled (and Noxys Waterwell enabled), I get a new error on line 9 of the Control.lua file instead of line 6 as before. (An older version of Stone Water Well does load without errors, although I can place the Pump itself but not the Stone Water Well.)
Before you try anything else, let me troubleshoot this some more tomorrow and I'll get back to you.
Thanks again.
Edit: Looks like everything is ok. When testing I had placed the text 'waterfill' in the override settings and forgot to remove it.
The 'Placepump' mod changes the built in pump so it only works on land and not on water.
Your mod allows me to do both. Looks like your mod wins. Thanks. :)