![](https://www.obxspasandpools.com/wp-content/uploads/2019/01/IMG_2239-1000x675-1-300x100.webp)
” How to tell its time to change your pool filter?” The word of thumb is to change your cartridge filter every two years if its a private pool. For a rental property pool, you should replace them every season. Before you do you will want to do the spring opening with the old filter… Read more »