Removing excess salts from media

[HantsomeOrchids]

If the worry is certain salts building up that could burn the roots, perhaps more specific fertilisers are needed. Talking in terms of "salts" doesnt make sense there either. If theyre becoming insoluble and are unable to be dislodged... who cares! I suppose salts that *dont get used* like chlorides and so on can build up, but if you are using low salt water like rainwater I dont see how that would happen, just dont add as much fertiliser!