Inconsistent FC results during SLAM

[djdonte]

My salt pool has around 70 CYA so my slam FC is high. I have been doing tests with 5ml of water instead of 10. Sometimes if I do the same test over it can vary by around 5-6. My reagents and powder are new and I am using a stirrer. Do I need to be more precise on the 5ml line? I've slammed a ton of times, maybe only once since switching to SWG, but I feel like I know what I'm doing. Any other ideas?

 

[proavia]

Go to your local drug store and get a child's medicine syringe - 10ml.
This will make it easier (and hopefully more precise) to measure out your 5ml sample.

The sample size needs to be precise, regardless of sample size to get consistent and accurate results.
A small sample size of 5ml makes this more difficult.

 

[djdonte]

Great idea.. I have a medicine cabinet full of those things.

 

[djdonte]

You're the man! the medicine syringe worked like a charm.