Martin Pleasance Tissue Salts Nat Sulph Watr Elim 30ml spray. Nat Sulph is called the water eliminating tissue salt. It is thus the main remedy for water retention. It is also strongly associated with the liver and gall bladder. This tissue salt is essential for the proper digestion of sugars and starches and for the effective withdrawal of water from the cells. This tissue salt largely controls the healthy functioning of the liver and it ensures an adequate supply of free-flowing healthy bile, so necessary for the later stages of digestion. Nat Sulph ensures the disposal of toxic charged fluids and its importance in the treatment of rheumatic ailments is self-evident.