Re-using your PH meter Calibration Solution

I have some GH ph 7.0 calibrating solution and on the bottle it says to use and then discard, but in all honesty i could see them saying just so you have to buy more.. Has anyone ever re-used it?

Just want some answer's before dumping this solution back into the bottle..




Btw i know the stuff isnt that expensive but if i can save a couple extra bucks then im down...

as longs as its not contaminated

Yeah, If you keep your meter relatively clean you should be able to reuse it, but if theres some containments on the meter it will throw off the solution

Word thanks for the advice guys, i keep my meter in great shape.. I think im going to just end up tossing it after, ive already gone through 2 ph meter's and really dont want to fuck this one up..