The filter tank should last for years. However, the inside parts might last 3 to 8 yrs. depending upon whether the filter media is sand, DE ( the grids do degrade after about 8 yrs and will have to be replaced if torn or they have holes in them) or Cartridge elements.
You should change it every 2 years because I just changed mine and when i went to Leslies pool store they said it was fresh an I changed it right on time and I had owned the house for 2 years and it was newly built which means we were the first owners.
Call the pool store where you purchase pool cartridges and ask how often you should change it. Replacement depends on the size of the pool and how it is used, as well as the type and size of the cartridge. The packaging may have some info, but call the pool store if you need more details.
4 years
How often should you change the fuel filter?
It is difficult to provide a definitive answer as to how often one should change a water filter cartridge. This would depend on the water quality as well as water usage, but the average is usually every 2 to 4 months.
Change the oil filter every time you change the oil.
You should change a furnace filter every 2-4 months.
Less maintainance with sand you just backwash, and change sand every four years. Cartridge filters clog and have to be taken out and cleaned often. Use sand it is hands down a better system.
when it is dirty
70,000 miles
Every 30,000 miles.
The amount of time you run the air conditioner depends on how often you should change the filter. Generally you should change the filter at least once every 5-6 months of use.
Your tank filter should be changed every month. If your filter becomes clogged, it should be changed right away.
Depending on how much you drive your car should be how often you change your air filter. Sources say you should change it when you go to get your oil changed cause they both last about the same time.
It will depend on how often you use your Jenn Air cartridge. Typically it will need to be changed every 2-3 months, but heavy use will require quicker changeovers.