fc level

[bof]

Hello boffins

I am just getting to grips with this site and you say that fc should be between 3-7 but my test kit indicates a level of 1-2 can someone explain the difference. I know that each pool has slight differences but how do you work out what these are

 

[diverman57]

test kit recommendations don't take into account cya levels. they recommend 1-2 ppm fc and then shock weekly. if you maintain fc levels per cya readings then you never have to shock and pool stays sparkling.

 

[bof]

Thank you
Clarity is everything

 

[JohnN]

It's all because the pool industry refuses to acknowledge the relationship between CYA and chlorine. CYA buffers the chlorine. In fact, there is more active chlorine in tap water (unless you have a well) than there is in a pool that is stabilized by the CYA.

 

[bof]

Dam
My test kit only measures fc to 5 in a colour scale of 0.5-1-1.5-2-3-5 and the recommended value is 7 ish I will just have to spend some money and get a good test kit luckily I have some friends visiting this month.

 

[kimkats]

A good test kit will SAVE you money and time in the end. You will LOVE being in control of your pool.

 

[chem geek]

The test kit matters. You want one with a FAS-DPD chlorine test kit, specifically either the TFTestkits TF-100 or the Taylor K-2006. See the Pool School article Test Kits Compared.