Turn the black knob so the green needle is at 13. It may be a year before you need another backwash, and by then you may have forgotten when it needs it.Drockfresh said:
How do I backwash my filter? Do I add DE afterwards?
- Thread starter Drockfresh
- Start date
Just guessing, but one is probably controlled by the dial, and can be set where you want to perform your backwashes, as a reminder. The other is probably a tell-tale that indicates the highest pressure reached on the gauge. You should be able to reset that one somehow as well.Drockfresh said:
Again, just a guess based on past (non-pool) experience.
The green one should be turned to 10, which is your start up pressure with a clean filter. The white one used to be red and will move to 20 when you move the green to 10. When the black needle is in line with the white one it will be time to backwash.
renovxpt said:
Almost. It is true that the 2 arrows are fixed at a 10psi delta. But waiting for that much of a rise is an outdated recommendation. We recommend cleaning at a 20-25% pressure increase to prevent drastically reduced flow.
You can either mark your clean pressure and then clean when it rises that % ... or mark the pressure at which you should clean it ... being 13psi in this case.
Posted from my Droid with Tapatalk ... sorry if my response is short
