Left test kit outside over winter. Still good?

duraleigh

Admin
Mod Squad
TFP Expert
Platinum Supporter
LifeTime Supporter
In The Industry
Apr 1, 2007
32,843
Sebring, Florida
It's done. Don't take a chance on getting bad results and really screwing up your pool. Bite the bullet and get a new kit you can rely on.
 

JoyfulNoise

TFP Expert
Platinum Supporter
May 23, 2015
15,861
Tucson, AZ
Got it - will order one today. I had been keeping it out by the pool all summer for the last couple of years. I guess that was a bad move too!
Test kit chemicals are heat and moisture sensitive. They should be stored inside your home in a cool, dry and dark space. A high cabinet in a pantry or wash room is fine as long as temperatures are moderate and humidity is low.
 

ship of fools

Well-known member
Nov 9, 2011
592
Albany, NY
I bought a new batch of reagents last year because mine were going on their 3rd or 4th season. Everything tested the same using the old reagents so maybe run a couple of parallel tests and you may find you can use the old ones up without losing any accuracy.