Getting funky results from my new test kit.

[kledbetter]

Just received my tfpro test kit. Did a full water tests and everything smooth and within expected ranges except the chlorine test. I was at roughly 3 to 4verified by pool store and my old crappy tests last weekend. So over next 3 days I added 3 gallons of liquid chlorine as my CYA is around 65 and wanted to be up around 12ish before starting a SLAM in next couple weeks. But when I test I'm getting 24. 31k pool and link to the chlorine I added. I retested twice and got same results. According to the pool calculator using 10% liquid chlorine should have only raised is 10ish. Not 20. Ideas of what I'm doing wrong?

Edit by Jim R.

 

[Newdude]

According to the pool calculator using 10% liquid chlorine should have only raised is 10ish.

Correct. But can you trust the baseline test ?

If they were right, then you mathed wrong so please confirm you used a 10 ml sample and each drop was 0.5 FC, or 25ml and each drop was 0.2 FC

 

[kledbetter]

10ml so each drop 0.5. it's is possible that was just higher than I thought before. I'll give it a few days and test again.

 

[Newdude]

10ml so each drop 0.5.

Ok great. There's no need for the finer 0.2 scale of the 25ml sample test. Save 2.5x the supplies and stick with the 10ml / 0.5.

it's is possible that was just higher than I thought before.

There's a reason we require reliable testing before giving chemistry advice. We've seen it literally thousands of times and good advice with bad data is bad advice.

I'll give it a few days and test again.

It might take a while to come down. We still have short days with a low sun angle. Slam level is 28 for you with a 70 CYA (always round up). You're pretty much there and its totally safe to wait it out.

 

[kledbetter]

Thanks and will do. When this crazy cold passes I'll recheck