Cleaning Taylor test sample tubes

[red-beard]

Any suggestions? I have 4 and some are getting gnarly

 

[ajw22]

I rinse my test vials with tap water then dry them with a paper towel.,

 

[JamesW]

Muriatic acid works well in most cases.

 

[red-beard]

OK. I'll try dilute MA. It is a whitish deposit, probably CH

 

[mgtfp]

In the CYA tubes some diluted bleach works well.

 

[red-beard]

These are the standard tubes used for everything which work with the speed stir. I have 4. One came with my FAS-DPD upgrade to my 2005 kit. One came with the speed stir. And two came with the two salt test kits.

 

[JoyfulNoise]

The K-1766 salt test will precipitate a lot of silver chloride as part of the titration. The silver chloride is very abrasive and will get embedded in the plastic which causes build up. The best way to clean it out is to add cleaning ammonia to it (the stuff you can buy in any hardware store or supermarket). Ammonia will dissolve the silver chloride. The easiest approach I find is to do the salt test, rinse out the sample tube when done and then add ammonia to it and put it back on the speedster for a minute or two and then rinse the ammonia out. Rinse well and let it dry.

In general, when testing, you should always rinse your sample tubes thoroughly under tap water after each test and allow them to dry. You should never just do the test, discard the liquid and then put them away. Triple rinsing all lab ware is the best way to keep sample tubes clean. I have my original Taylor sample tube that is over 7 years old. Aside from a little bit of scuff marks at the bottom from the magnetic stir bar, it looks as good as the day I got it.

 

[red-beard]

I triple rinse them out. But I've been doing it with the water from the pool sample bottle. I guess I'll move testing into the house, next to the sink. This should really please Mrs. Beard.

 

[JoyfulNoise]

Pool water is not good for rinsing. Tap water is better.

 

[an1vrsy]

Does this mean that whats left in the sample tubes is ok for the sink’s drain piping?

 

[JoyfulNoise]

Does this mean that whats left in the sample tubes is ok for the sink’s drain piping?

Yes. None of the test chemicals will cause any harm to plumbing. Simply rinse it down the drain with copious amount of water.

 

[an1vrsy]

Thanks for the response @JoyfulNoise