Well I wasnt gonna say dont dechlor at all - I got in trouble last time
But I agree, 10% of total system water does not appear to do any harm. or 90% lol
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| Buying sodium thiosulfate to dechlorinate http://byap.backyardmagazines.com/forum/viewtopic.php?f=1&t=4192 |
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| Author: | swanberg [ Sep 24th, '08, 10:54 ] |
| Post subject: | Buying sodium thiosulfate to dechlorinate |
I went looking on the net tonight for some sodium thiosulfate to dechlorinate my tap water since I'm running out of the expensive water ager I bought at the fish store. But this is weird. Most places sell 5gal buckets of the stuff for somewhere between $100-200US. But this photography place has two prices: Photographer's Formulary Sodium Thiosulfate (Pure Hypo), Pentahydrate - http://www.adorama.com/PYST1.html?sid=122222146010269 1 pound / $5.00 US Photographer's Formulary Sodium Thiosulfate (Hypo), Pentahydrate - http://www.adorama.com/PYST100G.html?si ... 2235358409 100g / $5.00 US Adorama looks like a reputable place - it has google checkout, and sells through Amazon.com, so I'm tempted. But am I missing something? Is it cheap because pool places regularly mark things up by 100%? Or is the chemical different and I'm going to kill my fish? |
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| Author: | Outbackozzie [ Sep 24th, '08, 17:46 ] |
| Post subject: | Re: Buying sodium thiosulfate to dechlorinate |
Its much cheaper to have the water sitting in a big bucket or barrel with an aerator in it. I dont know anything about dechlor chemicals - I dont use them. |
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| Author: | steve [ Sep 24th, '08, 19:37 ] |
| Post subject: | Re: Buying sodium thiosulfate to dechlorinate |
ive been using VitC as de-chlor for MAJOR water changes and for my marine tank top ups 10% topups of AP i wouldn't even worry about! |
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| Author: | Outbackozzie [ Sep 24th, '08, 20:02 ] |
| Post subject: | Re: Buying sodium thiosulfate to dechlorinate |
Well I wasnt gonna say dont dechlor at all - I got in trouble last time But I agree, 10% of total system water does not appear to do any harm. or 90% lol
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| Author: | steve [ Sep 24th, '08, 22:31 ] |
| Post subject: | Re: Buying sodium thiosulfate to dechlorinate |
the way i figure if the water is at 2ppm then a 10% change will leave you with 0.2ppm I wouldn't do a 90% change with tap. |
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| Author: | RupertofOZ [ Sep 24th, '08, 22:52 ] |
| Post subject: | Re: Buying sodium thiosulfate to dechlorinate |
Wouldn't a 10% change remove 0.2ppm.... not reduce it to 0.2ppm.... :dontknown: |
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| Author: | swanberg [ Sep 24th, '08, 22:58 ] |
| Post subject: | Re: Buying sodium thiosulfate to dechlorinate |
I prefer aging water as well, but I now have three systems, and really only one 55gal watertank to store water. And it's inside. So I need something for when HSM strikes... Also, hard to age water in UV when the temp is -20F.  So, I want to buy for emergencies and, well, winter. |
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| Author: | steve [ Sep 25th, '08, 16:50 ] |
| Post subject: | Re: Buying sodium thiosulfate to dechlorinate |
rupe, if i have a 1000l tank and remove 100l then i have 900L if i then add 100L of tap water that contains 2ppm chlorine then i have added the 2ppm chlorine in a 9:1 ratio. 11% 11% of 2ppm is .22ppm chlorine in the 1000L tank. i think 
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| Author: | RupertofOZ [ Sep 25th, '08, 17:07 ] |
| Post subject: | Re: Buying sodium thiosulfate to dechlorinate |
Ah... OK... I thought the tank was measuring 2ppm ... and you were replacing 10% of the water to dilute... 
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