Your TA range can be 60 to 90 or 60 to 80. I tend to use 60 to 80 these days, but 60 to 90 is also fine.
In the US, baking soda most commonly comes in 1 pound boxes. 5 Kg is about 11 pounds, so 11 of those boxes. I don't know what size box baking soda comes in where you are.
The idea on the target FC level is to have the FC level be between 3 and 5 at all times during normal operation. You never want FC to be below 3, and you shouldn't have any reason to have FC above 5 unless you are shocking. That is all separate from the ideal of when to shock. Normally you shock if you see algae, if the water is cloudy or murky, or if FC falls to zero.
To get my Pool Calculator to show a FC goal of 6 to 11 you must have set CYA to 80 and source of chlorine to bleach. Since you have a SWG that is not correct for your situation. You should set the source of chlorine to SWG.
The way to manage the FC level is somewhat different if you are using the SWG, from when you are using bleach. With a SWG the FC level will be much more uniform and can be lower than with bleach. Several things in your message imply that you are using bleach. I assume you are using the SWG, or rather will be using the SWG once the FC level falls a little bit. If you are using bleach, you aren't being clear about what you are trying to do, so those parts don't make sense to me.
In the US, baking soda most commonly comes in 1 pound boxes. 5 Kg is about 11 pounds, so 11 of those boxes. I don't know what size box baking soda comes in where you are.
The idea on the target FC level is to have the FC level be between 3 and 5 at all times during normal operation. You never want FC to be below 3, and you shouldn't have any reason to have FC above 5 unless you are shocking. That is all separate from the ideal of when to shock. Normally you shock if you see algae, if the water is cloudy or murky, or if FC falls to zero.
To get my Pool Calculator to show a FC goal of 6 to 11 you must have set CYA to 80 and source of chlorine to bleach. Since you have a SWG that is not correct for your situation. You should set the source of chlorine to SWG.
The way to manage the FC level is somewhat different if you are using the SWG, from when you are using bleach. With a SWG the FC level will be much more uniform and can be lower than with bleach. Several things in your message imply that you are using bleach. I assume you are using the SWG, or rather will be using the SWG once the FC level falls a little bit. If you are using bleach, you aren't being clear about what you are trying to do, so those parts don't make sense to me.