There's also <kuid2:35412:38300:4> water trough 500m, <kuid2:35412:38301:4> water trough 400m and <kuid2:35412:38302:4> water trough 300m on the DLS. These and the above are by Mike10 and the fixed building ones are functional when used with suitable scripted locos.
Additionally, there are some French ones available, although I forget the names offhand. Unlike the Mike10 versions though, they aren't functional.
