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andy.clayton2@hotmail.co.uk

YKS club member
"Sodium Thiosulphate" 11:32am Tuesday 27th Apr


joined: 25th Jun 17
last here: 10:12pm Today
posts: 149
from: Selby, N.Yorks

Can anyone advise the recommended mix/dilution for Sodium Thiosulphate crystals for use as a dechlorinator please? There was a thread on this last year and I recall Tony B provided the recommendation, but it’s been archived and only the initial post appears to be accessible, not the subsequent discussion. This time I’ll write it down

Thanks in advance.
14TB

YKS club member
"RE: Sodium Thiosulphate" 11:52am Tuesday 27th Apr


joined: 6th Mar 10
last here: 9:03pm Today
posts: 7039
from: SOUTH YORKS


Here is one Andy,
Make a solution consisting of 4 ounces (1/4 lb) Sodium Thiosulfate crystals (photo or technical grade) dissolved in 1 gallon of distilled or deionized water. Use 5 ml (1 teaspoon) of the solution for each 10 gallons of makeup water to neutralize up to 3.75 ppm chlorine. One cup can be used for each 500 gallons. (The entire one gallon of solution will treat about 7500 gallons of tap water.) The shelf life of the solution is about six months when stored in a cool location. The crystals will keep for several years if kept dry.

It is safe to overdose.


Tony




PLEASE STAY SAFE, KEEP YOUR DISTANCE
andy.clayton2@hotmail.co.uk

YKS club member
"RE: Sodium Thiosulphate" 7:56pm Tuesday 27th Apr


joined: 25th Jun 17
last here: 10:12pm Today
posts: 149
from: Selby, N.Yorks

Thanks Tony.
JIMMY/S

YKS moderator team..
"RE: Sodium Thiosulphate" 10:12pm Tuesday 27th Apr


joined: 13th Jul 10
last here: 9:38pm Yesterday
posts: 2674
from: West Yorkshire

Keep an eye on your parameters when using this Andy as it tends to raise Ammonia levels.
robholmes

YKS club member
"RE: Sodium Thiosulphate" 12:22am Wednesday 28th Apr
joined: 23rd Jun 13
last here: 2:19pm Saturday 8th May
posts: 240
from: Bradford.

130 grams to 1 litre of water.
Boiled water will fully dissolve the crystals.


14TB

YKS club member
"RE: Sodium Thiosulphate" 9:48pm Wednesday 28th Apr


joined: 6th Mar 10
last here: 9:03pm Today
posts: 7039
from: SOUTH YORKS

manky sanke guidance there are many others cannot overdose but do watch ammonia.




Tony




PLEASE STAY SAFE, KEEP YOUR DISTANCE
andy.clayton2@hotmail.co.uk

YKS club member
"RE: Sodium Thiosulphate" 9:08pm Friday 30th Apr


joined: 25th Jun 17
last here: 10:12pm Today
posts: 149
from: Selby, N.Yorks

I’ve had a big ammonia spike on the Q system so been doing large and regular water changes this week. “Fresh” water is through a carbon filter but DPD4tabs indicate there is still some chlorine present, so using the ST as a secondary precaution. Levels have dropped well, but not completely, but getting there. Only realised there was a problem when the Ginrin Shoa went odd food overnight. All others were still eating like pigs. Just goes to show what water parameters they can put up with.


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