Does baking soda (sodium bicarbonate) act the was salt does in your pool besides adjusting alk? When you think salt ya thing sodium.....
If so then after a period of time and several uses it will basically soften like salt does and will it eventually corrode as they say salt would in a pool?
Whats the chances of having a warranty voided through the use of soda but not having a salt water pool?
I know this sounds far fetched but after a period of time even through adding water from evaporation/splash out it doesn't actually go away it would just build up. possibly?