First, I ran 2 hrs/day. Now 3 hr/day but FC level always low when I perform the test (once every 2 days). The level was mostly 1 or 2. Sometimes 0. Added chlorine. Few days later. Same thing. Add chlorine again. So on....
In the manual recommends run 3 hr for the size of my pool.
What is the problem here?
In the manual recommends run 3 hr for the size of my pool.
What is the problem here?