If the shower curtain is in bad shape then it need to get replaced ASAP. Shower curtains are very cheap. If people go somewhere like a dollar store they can get them for one dollar.
Shower curtains, with proper care, can last a year or more. But if you notice mold or stains on your curtain despite cleaning it then replace it to avoid harmful germs and bacteria.
The changing cartridge in the shower should be replaced every 6-12 months to maintain optimal performance.
Cotton gets wet. By the end of your shower, a cotton curtain would be drenched and would fail to serve its purpose.
A shower curtain can often be cleaned simply by removing it and washing it in the washing machine. If one is concerned about using all natural products, there are many of these available for use in the laundry.
daily
They are replaced when they go bad.
Every day.
every day or night
At least every other day.
ONE
Shower cartridge replacement should be done every 6-12 months to maintain optimal performance and water flow in the shower.
One week