Spaboy's fcl reading vs test strips

[westernk]

[FONT=&quot]Hey guys. Brand new to tubbing. Got my arctic yukon installed 2 days ago. water @ 2000ppm salt conc. The FCL range reading on the spaboy probe sent to the app is 0.6-1.5ppm (falls under the "OK" column). PH reading from same Spaboy probe has been between 7.0-7.6.
I picked up the aquacheck test strips and TA is at 80ppm, PH 7.2, but FCL from test strips showing what I think is 0 PPM. Which FCL reading do I trust?
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[AimeeH]

Welcome to TFP

I wouldn't trust either 100%

Strips are what we call guess strips for many reasons. They aren't ALWAYS wrong, but not reliably accurate either.

I'm not sure what most tub owners use to test water (I only have a pool) but I'd think the TF-50 would serve you well.

Pool School - Test Kits Compared

 

[Richard320]

Go buy yourself a drop-type test kit. If you have a choice between DPD and OTO, go with OTO. In layman's terms, pink FC test or yellow FC test. You want yellow. Either will have a orange-pink pH test.

There's one company that has the monopoly on importing Taylor stuff into Canuckistan, so they charge accordingly. If you find some other 2-way test kit like this, it will work. It's not complete, but a hot tub can be dumped and refilled easier than a pool if things get out of hand!

 

[AimeeH]

Thanks Richard.

I missed the location

 

[westernk]

Thanks I have an OTO kit that the dealer gave me. I read that OTO reads TOTAL CL (Free + combined) and the DPD reads free chlorine and so the DPD is the one you actually want?

 

[Richard320]

Thanks I have an OTO kit that the dealer gave me. I read that OTO reads TOTAL CL (Free + combined) and the DPD reads free chlorine and so the DPD is the one you actually want?

That, I don't know about that. But I know the DPD can bleach out if FC is really high but OTO just gets darker and darker.