Free Residual Chlorine Probe? Anyone used it before?

HarrisonHRG

Active member
Sep 18, 2024
39
Hampshire, UK
Hi All,

Looking to see if anyone has experienced with a Non-Membrane Free Chlorine sensor, For example - CGE 3-mA Free Chlorine Sensor | ProMinent WebShop

There is many on Ali Express for sub £100 and id be interested to experiment with it to see its effectiveness for measuring Free Chlorine in a Salt pool without the effect of CYA on the probe!

I'm having issues with FC at the moment, the ORP sensor is reading 830Mv when people are in the pool and 770Mv when no one is in the pool, regardless of 0.5ppm or 8ppm of Free Chlorine. (my CYA is at 15ppm, its an indoor pool)

If you have had any experience or testing with this type of sensor id be very interested to hear it!

Thanks,
 
You are swimming in the deep end of DIY automation...of which there are few here...

Maybe a bump will help...

Road Trip Dog GIF by Tomas Brunsdon
 
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