Hm, the UI for them says it's giving me +4 Faith even though it's supposed to be +3, though I was playing it just now before you updated. Is that a thing you fixed or some mysterious malady?
Are you by any chance using whoward's DLL?
The reason I ask is that the original design for the UI was that it yielded +1 Faith per adjacent tile with access to fresh water. But it turned out the relevant Secondary Yield Table, that should make this happen, didn't work with the standard game dll. Therefore I changed it to the more static +3 Faith.
In Whoward's DLL however, this is fixed and the table actually do work.
I don't think I actually removed the entries for the UI in the nonfunctional table after changing its design, so if you are using the custom dll and the UI is built on a tile with one adjacent tile with access to freshwater, then it would yield +4 Faith.
If that's not the case, then I don't know. In all my games it gives +3 Faith.
Are you sure the yield isn't caused by something else (beliefs, etc.)?
On another note, I would really like to get some feedback on the civ. Especially now since a couple of people on steam has cried OP and given negative ratings (even received a friend request from a person on steam, just so he could write me a very long message about how OP and boring the design was - he didn't answer when I asked if he'd actually played with the civ, but instead told me that 'at least the artwork is good').