Justin, I see the pump you bought there are just a couple issues I see with that pump. I am NOT knocking you, just trying to help you out and take it or leave it.
That pump uses a plastic hose, which can trap mold spores inside. For it to be proper the entire plastic tube needs to be thoroughly cleaned before EACH sample. See the problem there?
The “calibration” device is never required to be calibrated, so how would you know if it is accurate?
I prefer and use Buck pumps or Air-O-Cell bio pump plus. I use the Buck rotameters that must be calibrated at least annually.
Yes they are signficantly more expensive, but I view everything I do as if it were going to court and protect myself in a manner I feel is acceptable. If you were to get called into court, they would tear you to shreds.
Do as you wish and it’s your company, this is just my thoughts on the product and the reason I don’t use them. Am I right? Yes…NO…depends on your view and there is not right or wrong answer.