How Much Sodium Thiosulfate To Neutralize Chlorine
Sodium thiosulfate dosing for dechlorination
I read here https://www.koiphen.com/forums/showth...ive-Give-and-take that:
I know that chlorine levels vary in tap h2o and that an exact dosage isn't needed, merely can I get confirmation that the higher up works for typical tap water? The reason I ask is that poking effectually on the Interweb shows a pretty widespread variation in recommenced mixes. Just desire to make sure I'm not going to exist nether or overdoing it. Another reason I'm asking is that because the corporeality stated above, "1&one/2 lbs" is oddly phrased and I want to confirm that it actually is "1.v lbs" and non something different....Sodium thiosulfate crystals are a very inexpensive fashion to dechlorinate. Mixing 1&1/two lbs of the crystals with one gallon of water will yield plenty dechlorinator to treat about 85,000 gallons.
Lastly, how well does a sodium thiosulfate solution keep? Is information technology something I can store out in the shed, or something that must be refrigerated and/or stored nether a limited temperature range, or does it go bad subsequently X weeks.
Thanks
Last edited by kimini; 07-12-2017 at 02:32 PM.
This was touched on in the contempo thread Understanding chlorine past RickF.
Originally Posted past kimini
Lastly, how well does a sodium thiosulfate solution keep? Is it something I tin can shop out in the shed, or something that must exist refrigerated and/or stored under a limited temperature range, or does it go bad later X weeks.
https://www.koiphen.com/forums/showth...40#post2624440
member
That thread was very useful merely didn't accost how potent a solution to mix upwardly. I know directions were given in the water health thread, but that's pretty old now and koi advice keeps irresolute.
Here is a figurer. The book of h2o is the amount yous are replacing... not the entire swimming volume. I brand a stock solution that I use up within a month. If y'all have an area of moving h2o that the koi cannot access, then only dropping the amount of crystals in that area would work well also since they deliquesce quickly. I calculate my dose for 2x the normal amount of chlorine/chloramine in my tap water to embrace any variance from the water company. I detect that if the water company is flushing the system or using an excessive amount of chloramine (a rare outcome but it does happen), I can smell it right away.
That thread was very useful but didn't address how strong a solution to mix up. I know directions were given in the water health thread, just that's pretty quondam now and koi communication keeps changing.
https://world wide web.koiphen.com/forums/koicalcs.php?do=calcst
The problem is yous need to factor in how much chlorine/chloramine is in your water.
That thread was very useful but didn't address how potent a solution to mix upward. I know directions were given in the h2o wellness thread, only that'due south pretty onetime now and koi advice keeps changing.
Here is what affects my solution.
member
Hah, that's a great thought, and avoids the mixing, storage, and concerns almost information technology going bad. And thanks for the computer. My local h2o district simply lists chlorine, which ranges from near-cipher to a max of 4 ppm. I'll aim a little higher than that - thanks everyone.
... If y'all have an area of moving water that the koi cannot admission, then just dropping the amount of crystals in that area would work well also since they deliquesce quickly...
That is the way I usually do information technology except I just scatter the crystals around the edge of the pond.
If you accept an area of moving h2o that the koi cannot access, then
just dropping the amount of crystals in that expanse would work welltoo since they dissolve quickly.
member
I'm glad I asked most this. The link above claims 1.v lbs treats 85000 gallons merely with our chlorine level of 4ppm max, it's more similar 10000 gallons - big difference. Thanks again.
Final edited past kimini; 07-14-2017 at 05:08 PM.
So if my chlorine is .361 ... then is this the right amount of sodium thiosulfate to use in my swimming?Give thanks you
How are you measuring the chlorine?The number you are using in the screen shot is parts per BILLION not ppm. Or are you trying to dilute it using the entire ponds volume?
I used this calculator
How are you measuring the chlorine?
The number yous are using in the screen shot is parts per BILLION not ppm. Or are you trying to dilute information technology using the entire ponds volume?
https://www.rapidtables.com/catechumen/...pb-to-ppm.html
Something seems foreign to me.Well-nigh h2o departments want at least 1 ppm at the tap to be an effective sanitizer. If y'all only have 0.000361 ppm you tin can run across why I might be questioning this number.
26.5 grams of ST is used for every thousand gallons of water at 1 ppm and this will turn the chlorine into Sodium Chloride or table salt. This is near twice every bit much every bit the KP computer calls for.
If you had 5100 gallons of h2o at ane ppm of chlorine and then it would need 135 grams of ST to neutralize the chlorine and turn it to salt. Or the KP reckoner calls for 68 grams.
I am wondering if the original sample was authentic or if the amount of chlorine had prodigal in your h2o report. Await at post #five. The chlorine in that report is 1.78 - two.38 ppm which is much closer to what I would expect for a public water supply's disinfectant levels. Ricshaw lives in CA I believe.
But if yous feel your numbers are correct then mensurate out .024 grams of ST and get with it. My scales cannot measure that minor of an corporeality accurately. But for fun I only measured a few different ST crystals individually. All of them weighed more than 0.024.
When I do a big h2o change of a few hundred gallons I unremarkably put in a small handful of ST. My tap h2o is actually just beneath one ppm.
Like I said something is strange.
Last edited by montwila; 04-29-2021 at 09:27 PM.
Thank you ... that is why I was request because I wanted to make sure. I gauge if I add together more than information technology will be fine? I added 2 cups when I started the water change. I got this h2o study off my counties website. I don't know how oftentimes they change the amount.
Something seems strange to me.
Most water departments want at to the lowest degree one ppm at the tap to be an effective sanitizer. If yous only have 0.000361 ppm yous tin can see why I might be questioning this number.
26.5 grams of ST is used for every g gallons of water at 1 ppm and this will turn the chlorine into Sodium Chloride or salt. This is most twice as much as the KP figurer calls for.
If you had 5100 gallons of water at 1 ppm of chlorine and so information technology would need 135 grams of ST to neutralize the chlorine and turn it to salt. Or the KP calculator calls for 68 grams.
I am wondering if the original sample was accurate or if the amount of chlorine had dissipated in your water report. Look at post #5. The chlorine in that report is 1.78 - 2.38 ppm which is much closer to what I would expect for a public water supply's disinfectant levels. Ricshaw lives in CA I believe.
But if you feel your numbers are correct then mensurate .024 grams of ST and go with it. My scales cannot measure out that pocket-size of an corporeality accurately. But for fun I but measured a few different ST crystals individually. All of them weighed more than 0.024.
When I do a large h2o change of a few hundred gallons I usually put in a small scattering of ST. My tap water is actually just beneath ane ppm.
Like I said something is strange.
Is in that location a test kit I can get to test my tap water?
Two cups is more than enough. With proper aeration most of the chlorine will dissipate to the temper on its own inside 24 hours without using whatsoever ST. That is why public pools demand to have a constant amount existence injected into the water.
Cheers ... that is why I was asking because I wanted to make sure. I guess if I add more it will be fine? I added 2 cups when I started the water change. I got this water report off my counties website. I don't know how ofttimes they change the amount.
ST is recommended if doing, or adding more than 10% h2o modify of the volume of the pond. Long term these small volume changes tin can thicken or "order" the fishes gills and lead to "respitory" problems later in their life if they do become "clubbed". Under a microscope the lamella are most two times the normal thickness.
Yes, you "cannot" overdose the corporeality of ST. That is why I accept taken to modest handfuls when I utilize information technology. Large h2o change (several thousand gallons) is a big handful. Regular water modify ( a few hundred gallons) is a small mitt full or "three finger pinch".
Good luck.
Yes, there are chlorine drop test kits. API makes one and information technology near as accurate equally yous demand for koi keeping.
Is there a examination kit I can get to exam my tap water?
This thread, along with the mail beneath from another thread, just saved me a ton of money going frontwards. How did I not know about this after all these years? Thanks!
ST will suspension the chlorine-ammonia bond in chloramine immediately and so bind the chlorine, leaving the ammonia for the biofilter to metabolize.
ST will remain active in the pond for nigh 3 days. The chloramine will be gone within minutes if ST is added at the same fourth dimension equally the chloramine.
This thread, forth with the post below from another thread, just saved me a ton of money going forrard. RickF was a groovy person to have posting hither on KP. How did I not know about this afterward all these years? Thanks! Mayhap y'all should take a h2o quality grade. Are yous a member of a koi society? Both of these and some time on your part might salve yous another ton of coin.
Oasis't found an active koi society here in DC. Maybe it'southward the pandemic. Meanwhile, the just other chemical I've been using is a flocculant, like this: https://www.amazon.com/API-ACCU-CLEA...dp/B001D0Y9RG/
Maybe you should take a water quality grade. Are you a fellow member of a koi guild? Both of these and some fourth dimension on your part might save you another ton of coin.
I'm guessing at that place'south a cheaper alternative to that also?
Cheers,
Nib
Source: https://www.koiphen.com/forums/showthread.php?160673-Sodium-thiosulfate-dosing-as-dechlorinator
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