Thinking to switch to salt

I just don't think two IC60 is even going to be enough (produce 2 pounds each at about $1200 each). Unless you run the pump up around 18+ hours a day with the SWG on 100% output.
The Circupool RJ60 claims to produce about 3 pounds each ... two of those would be better at $1300 each.
The commercial Hayward Saline C 6.0 produces 6 pounds, although costs at least $3800.

So a pair of the RJ60 for $2600 + salt and install I think would be the "best / cheapest" entry point.
 
If I was you I would get 2 60k gallon rated SWCG units and see what that does for you. Install them in parallel. Perhaps plumb for a 3rd if needed. With your location, 2 will probably be fine though.

I can tell you though your FC is already too low and with a saltwater pool generally you keep it higher since FC is a function of CYA levels and with SW your CYA is higher (CYA around 70 for SW). This site's advice works if you follow all of the guidelines and do your own testing with a proper test kit like the TF-100 which has very high quality Taylor reagents. There is no reason for a weekly slam this is only needed for pools that don't follow proper pool care.

If your goal is to lower your chlorine level by switching to saltwater that isn't going to happen.

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What is this "submarine" thing? Your water should be properly circulated so it should not matter where you are in your pool it should all be the same.

PICs?
the submarine stays at the bottom all the time. It’s at 91/2 ft. It holds 3 - 3 inch pucks. We bought the VS speed so I can put it on a low speed but it’s doesn’t push the water unless I’m at 2600 RPM. Remember this pool is 35 W 60 L added the two French ends it’s 70 L
 
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