Frog @ Ease & Taylor R-0600 FC test

[emoses]

I've got a new Bullfrog spa that came with the Frog @ ease system. I may switch to Dichlor/bleach after I run out of the free chemicals I got with the new spa, but for now I'm gonna keep using the Frog.

I get consistently low FC readings, although Frog claims you only need 0.5-1.0 FC with their system. My question is: when I use the taylor daily FC/pH comparator block with the R-0600 reagent, the FC initially tends to read very low, but if I let it sit for 2-3 minutes and look again it reads significantly higher (e.g. it might read lighter than 0.5 initially but look more like 1.5 in a few minutes). Is that expected? Are you supposed to read it immediately and I should disregard the higher measurement?

I understand that the CC measurement isn't particularly meaningful for the frog system but I thought FC should be reasonably accurate.

 

[Mdragger88]

Welcome to tfp
The oto test is for measuring TC (which is fc+cc in one measurement) up to 5ppm
When you let the oto sit the difference can sometimes be interpreted as cc’s although it’s not real accurate. It’s basically a “do I have any chlorine or not?” kinda test.
Use the fas/dpd test to accurately test for fc & cc separately.

OTO Chlorine Test

This test is the most reliable way to check for the presence of chlorine. If … Read more…

www.troublefreepool.com

The frog’s type of chlorine can show up as cc’s when testing - this is one of the downsides (because monitoring cc’s is a major part of knowing when to purge & refill) along with the other things that make it frustrating to use like it’s intermittent addition of chlorine.
Here’s a good thread about the system & some of its downfalls. I suggest you follow the proper FC/CYA Levels whether you use the frog or not.

First Time Bullfrog Owner - Need help with Frog Ease System

Hello! First time hot tub owner and desperately hoping to find an answer to this issue. Have had our Bullfrog A8 for about 3 weeks now and have been using it almost every night since. It came equipped with the inline cartridge Frog @ ease system which was sold to us a a more 'efficient' way to...

www.troublefreepool.com

If you haven’t already you should purge your new spa with Ahhsome to remove biofilms & ensure a fresh start. New spas can (&often do) have biofilms from being wet tested at the factory then things grow while in route to you. This can make fc demand higher right out of the gate also leading to much frustration.
Here’s the chlorine guide for when you’re ready

How do I use Chlorine in my Spa (or pool)?

If you have a question about any information within this Sticky, please start a new thread for yourself where you will receive very quick responses to your specific questions. Thank you! Introduction There are two main things to consider when maintaining your hot tub water, Water Balance and...

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Please add your kit & your spa’s details to your signature including any ozone or uv etc. this helps you get the most accurate advice.

Create Your Signature - Further Reading

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[emoses]

Thanks! Signature updated.