skimmate waste

i was just woundering, you know that evaporation, the salt stays in the system and all you have to do is top off. but when running your skimmer wet, or get a full container, after time do you have to replenish the salt or is there no salt in the skimmate? (wasn't sure on the best way to ask)

If you skim wet you will have to add salt. I had that problem a while back and could not figure out why and asked and that was the reason.