Washing test vials with tap water

[BriDroid]

I rinse my cuvettes in tap water then store them filled with RODI water. I picked up one of these on Amazon. It’s nice to have small quantities of RODI for this purpose.

 

[Reginald Reefer III]

I use just RO drinking water from the spigot near the utility sink and try to get out as much excess water as possible. I will then put them in a glass dish and microwave for ~2 mins to dry and completely eradicate anything leftover.

 

[BryanM]

I also use RODI, and I seem to be in the minority. I get a measuring cup of rodi, rinse, test, rinse, test, rinse and fill the test vial with rodi for storage.

 

[EnterName]

I also vote RO/DI rinsing with squeeze bottles.

I'm sure it doesn't make much of a difference, but the glass stays clearer for longer and it's just "good protocol".
I mainly use the Phosphorus ULR HannaChecker and target really low phosphate levels, so I want to prevent any interference whatsoever and think RO/DI is the right way to do it.

 

[Salty_Northerner]

I always rinse and store the vials with rodi water so not to get build up or water spots.

 

[Privateye]

I use RO/DI at work because it's just a different faucet at the same sinks. I use tap water at home. I don't notice a difference when I test the same sample with the tubes/cuvettes at the other place.

I've seen cuvettes get mineral buildup over time from washing with tap water though. Back at that job we just acid-washed our glassware every year or two. It'll make them sparkle like new. So if you're ever concerned about residues contaminating your tests, you can always acid wash the cuvettes. It's the closest thing to a factory reset for your glassware.

 

[exnisstech]

3 rinses in RO water then shake and dry with a microfiber towel. I do it the same each time for constancy. I have a tee before my di resin going to a faucet at the kitchen sink so we have RO water there.

 

[mdpitts]

I rinse once with tap/well water and then rinse/shake with RODI and air dry on 3D printed rack. At least if my test is off it should be consistently off

I have a 3D printer and was looking for drying racks a while back. Could you share info on the file?

 

[BryanM]

3 rinses in RO water then shake and dry with a microfiber towel. I do it the same each time for constancy. I have a tee before my di resin going to a faucet at the kitchen sink so we have RO water there.

I first read this as you had tea as part of your routine :)

 

[serval]

I rinse with tap water, fill once with RO/DI, give it a good shake, let them dry in their box, and then rinse them in tank water a few times before filling with the water sample. Also keep a microfiber towel handy to wipe down the outside of the vial for my Hanna checkers.

I mostly follow this by rinsing dirty vials three times in tap water. However, I don’t bother with the RODI rinse. I definitely rinse out a test vial before testing in tank water three times. Three rinses are generally what one does in a lab.
Using a dry towel or microfiber cloth to clean the outside is good too.

 

[overhead]

Has anyone tested to see if using just tap water, or tap water followed by RO/DI water or tap water followed by paper towel followed by RO/DI followed by tank water , etc has any impact on the test results? Hang on now, I am not volunteering...unless someone wants to send me like 50 Hanna phosphate or nitrate reagent envelopes, those things are expensive. I promise I will run the test...really, I mean it. I am trustworthy.

 

[vinsk]

I rinse my tubes with RODI water that’s been run through a UV sterilizer. I then transfer them to a negative pressure ventilator I made at home until completely dry. I then transfer them to a centrifuge I got from a used hospital equipment sale, run this for 15min then place them into a vaccu-sealed bag until next use.

 

[Fish Fan]

I rinse my tubes with RODI water that’s been run through a UV sterilizer. I then transfer them to a negative pressure ventilator I made at home until completely dry. I then transfer them to a centrifuge I got from a used hospital equipment sale, run this for 15min then place them into a vaccu-sealed bag until next use.

No other way to do it