Very good to think and learn things slowly as simple things like water are different everywhere we go.
Sea water is often hard for us to use but then it also may be treated in different ways to get the salt out, so it is hard to say if your own is good or really bad.
But then then is part of the hobby. I have to figure it out each time I move and then adjust what I do.
Look, learn, sometimes fail, and adjust as needed!!