Potassium Peroxymonosulfate

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BuddyLeeCU

Member
Anyone running sterile use potassium peroxymonosulfate?

In a nutshell it breaks down inorganic compounds to free up chlorine, so you can run a lower concentration with a higher ORP value.

Picked up a bag from the pool supply store, its 1# for 5,000 gallons of water so basically a lifetime supply. Lady at the pool store said it can take about 4 hours for it to work before retesting.
 
WeedFreak78

WeedFreak78

Well-Known Member
BuddyLeeCU said:
DO NOT fly with this in your luggage. No idea what its used for outside of hydro but it earned me a 2 hour interview with TSA and DHS.
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I could see how that would go with me..
TSA agent "why do you have this material"
Me "Is it legal for me to posses and transport? yes? I'm done answering your questions"
 
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BuddyLeeCU

Member
WeedFreak78 said:
I could see how that would go with me..
TSA agent "why do you have this material"
Me "Is it legal for me to posses and transport? yes? I'm done answering your questions"
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Ya but you probably wouldn't have been on your flight and maybe not flying any time soon with that attitude. Most of the interview was watching 3 TSA agents try to figure out what it actually did and if it was really dangerous, all they knew was " it set off the sensor". I think they were concerned I might have mixed something else with it, probably had to wait for team special Olympics to test the shit out of it.
 
ShirkGoldbrick

ShirkGoldbrick

Active Member
Wait, so you guys actually run this? How do you do it? Do you make a solution with pool shock and this and then dose accordingly?
 
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BuddyLeeCU

Member
ShirkGoldbrick said:
Wait, so you guys actually run this? How do you do it? Do you make a solution with pool shock and this and then dose accordingly?
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Yes, pool shock at 1.5 ppm. The challenge is the reading can be difficult over time because chlorine is present but has lost its oxidizing potential. Pot. Peroxy helps restore the oxidation potential without adding additional chlorine.
 
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BuddyLeeCU

Member
mainliner said:
is the unstable chrorine the one to look for ?

i think mines unstable im not sure
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Its 'active chlorine'. Most test strips only show total chlorine including that which has lost its oxidation potential. You have to use an ORP meter (touchy with pH) or a test strip for active chlorine. ORP meter only works if you use one rez.
 
ShirkGoldbrick

ShirkGoldbrick

Active Member
BuddyLeeCU said:
Yes, pool shock at 1.5 ppm. The challenge is the reading can be difficult over time because chlorine is present but has lost its oxidizing potential. Pot. Peroxy helps restore the oxidation potential without adding additional chlorine.
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Make sense, so why are you the only one doing it? Searching startpage doesn't bring up any results, not even in the scientific community.

I use an ORP meter and if I run constantly in aero the chlorine evaporates in like a day I'll have 0ppm by test strip active and 1ppm total and have gone through ~100grams of calcium hypochlorite.

I'm currently on a 1 minute per hour timer and I'm getting readings of 10ppm free and 20ppm total but an ORP of only 600 so I don't think that's right and the strips are notorious for being inaccurate. No way I have 10ppm free and an orp of only 600.

Albeit my reservoir does look cloudy. I attribute that to shorter run times though. Previously it would remain clear but I ran it all the time, now it only gets filtered 200 mesh > 5 micron before going through the sprayers one minute of the hour.
 
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BuddyLeeCU

Member
ShirkGoldbrick said:
Make sense, so why are you the only one doing it? Searching startpage doesn't bring up any results, not even in the scientific community.

I use an ORP meter and if I run constantly in aero the chlorine evaporates in like a day I'll have 0ppm by test strip active and 1ppm total and have gone through ~100grams of calcium hypochlorite.

I'm currently on a 1 minute per hour timer and I'm getting readings of 10ppm free and 20ppm total but an ORP of only 600 so I don't think that's right and the strips are notorious for being inaccurate. No way I have 10ppm free and an orp of only 600.

Albeit my reservoir does look cloudy. I attribute that to shorter run times though. Previously it would remain clear but I ran it all the time, now it only gets filtered 200 mesh > 5 micron before going through the sprayers one minute of the hour.
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You're running way too complicated of a setup for me. My guess would be youre running organic nutes and the chlorine is eating it up, or you have an organic medium somewhere in your system like coco, maybe molasses?

Anyway I have to reorder the stuff won't get it till next week.

Here's an oldie but its what I read to test it out.

http://pubs.acs.org/doi/abs/10.1021/jo01081a019
 
ShirkGoldbrick

ShirkGoldbrick

Active Member
Update? I do have some ammonium in my ferts from the calnit. I tried running chlorine in dynagrow and that shit isn't happening, it all forms chloramines and none is left free.

I Just don't know that it's ever been used in a nutrient solution though so I'm worried about it reacting with other nutes. If it precipitates or off gasses the ammonium I could care less, but I don't want it Messing with the rest.

Can you mix it in a concentrate solution with calcium hypochlorite? I ask because I already almost blew up/gassed myself reusing the same container for trichlor and calhypo before.

I'd be interested in using it to remove the chloramines without reducing chlorine.
 
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