hi i bought a water softening pillow that treats a 20 gallon tank. my tank however is 47 gallons
I was just wondering if it will still do the job but just at a much slower rate?
it also says that it can be recharged in salt for 2 hours but does this mean it will NEVER run out or what?

I was just wondering if it will still do the job but just at a much slower rate?
it also says that it can be recharged in salt for 2 hours but does this mean it will NEVER run out or what?