Here is what I do when I add salt.
I appreciate feedback from more experienced "Poolies" on my process.
First thing, shut SWG OFF.
Put multiport on Recirculate
Scoop the salt from the bag and sprinkle slowly into the water flow from return jets.
it seems to dissolve quickly this way.
After adding a 100 lb bag, put the brush on and agitate the entire bottom as best you can.
12-24 hrs later, I put multiport in Filter and turn SWG BACK ON.
THE so called self proclaimed "EXPERT" that built my pool showed me how to jam a 100 pound bag down the skimmer. At first I didn't know better myself.
Then I read all I could find on the net about having a salt water pool.........EVERYTHING, I read said, NEVER PUT SALT DIRECTLY INTO SKIMMER.
After a few months, I removed my SWG cell. Ohhhhhhh my god, just about completely blocked across the plates. At this time, the SWG was only 4 months old.
I wish I had a picture.
I soaked it for an hour in a 20% muriatic solution, it looked like brand new.
I just took it out to inspect it 6 weeks ago, still completely clear, no scaling or build up.
NEVER add salt directly into skimmer.
Captain