Hi, Is there a way to shut off solvent checking for a few waters? I have what looks like sodium-coordinating waters that get taken out by ordered solvent filtering, even as I am loosely restraining them to be at distances expected for sodium. These waters -I have 4 NCS-related copies- are taken out by filtering, which messes up water numbering, and makes my restraint descriptions irrelevant. I have tried putting them in a separate chain, but they get fused to the solvent chain by phenix. My other option is to describe those waters as a different type of atom (not HOH), but they are water molecules, so I am reluctant. And I want to keep ordered_solvent True. For cif files already available in the default ccp4 library, NA seems to be elemental sodium, NAW, NA5 and NA6 seem to be specific sodium+water complexes with three, five and six waters coordinating (where they are no longer HOH, obviously). So, I have created bond/angle restraints specifically to my atoms, but is there an easy way to do this? Or should I just create a two-water NA (NA2.cif) specific for my case and call waters as some O atom? That's easy, but I wonder if that's the common practice (or I am missing something completely). Any ideas? Thanks Engin