Is this a big deal? I noticed, when the dial is at below 50%, the display show about 5 % less. But when the dial is at 50%, the display show higher than the dial's and as I turn the dial to higher, the difference can be as high as 20. It matched at 100% though. I have been noticing this for a while but just ignored it until now, me 2 yrs old T-cell-15 starts making less and less chlorine with no fault indicators. All my chemical reading are fine, including combined chlorine. All previous cells lasted 3.5 yrs.
However, at setting below 50% on dial, readout shows 90%+.
However, at setting below 50% on dial, readout shows 90%+.