Can I do molecular replacement with phenix/phaser, keeping all the waters from the first model from the first data set?

From here (http://www.phaser.cimr.cam.ac.uk/index.php/Molecular_Replacement#WATER), I should change all the HOH labels to something like WWW. Then I guess that I should put HOH labels again in the solution model, for the following refinement inĀ  phenix.refine.



Is that it?...
Any suggestions?

thanks again!