DPD Powder R-0870 Longevity

cleanpool

Well-known member
May 27, 2011
54
#1
Will anybody tell me how long DPD powder is good for. I have a half container from last summer.I keep in my house air conditioned. THANKS ALL
 

Patrick_B

TFP Expert
LifeTime Supporter
Jun 7, 2011
14,999
Midland TX
#2
Its good under those conditions. Taylor suggests one year for reagent replacement but some will last indefinitely under good storage conditions. I like to replace the pH Phenol Red yearly, but that is my OCD.
 

cleanpool

Well-known member
May 27, 2011
54
#3
Thanks Patrick for your reply. I'll use all until finished. I ordered new supply from TFTestkits earlier this month.
Mack
 

bbrock

Well-known member
Apr 15, 2014
696
Livermore, CA
#6
Any response?

I’m curious about the same thing. I could either by 10 g on Amazon for approximately $9, or 0.25 pound which equals 113 grams for $29. Obviously the quarter pound is a heck of a lot better value wise. As long as I keep it indoors, in a dark space, away from any moisture or sunlight, I don’t see what is the problem; especially if I transfer it to a smaller container for regular use.

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Sorry, I didn’t see any responses until now.
 

jblizzle

Mod Squad
TFP Expert
LifeTime Supporter
May 19, 2010
41,197
Tucson, AZ
#7
As you see, Taylor states an expiration of 1 year. Many have found it will last longer. But is it worth saving a few bucks to wonder a couple years down the road?