Poundland have something decent

[Hoppkins]

My missus works in poundland. I found these tablets and thought they would work for brewing. Looked on the side:

1 tablet in 4 litres of water for 30 mins.

64 tablets in a pack for a quid. Not bad i thought.

Active ingredient is Sodium Dichloroisocyanurate (400mg per tablet)

[tubby_shaw]

Nice find Hoppkins
But still not as cheap as thin bleach

[Hoppkins]

Yeah but thin bleach doesn't have a cute little duck on the front

[steve_flack]

Active ingredient is Sodium Dichloroisocyanurate (400mg per tablet)

That's the same stuff that was in (the now defunct) Chempro SDP. It's a chlorine source.

[Hoppkins]

Is that good? >_>

[Andy]

Not if you're a microbe

[Hoppkins]

Might get SWYMBO to get another couple of packs. I hate measuring this kind of stuff so it's ideal for a imbecile like me

[maxashton]

You're gonna have to use a lot of those bad boys to sanitize a fermenter!

[Hoppkins]

I was more intending them for santising my utensils and bottles

[sparky Paul]

I use Chlor-Tab 500 tablets for all my sterilising, which are also Sodium Dichloroisocyanurate. Easy to adjust the strength by the volume of water, and rinsing removes any residual smell. They seem to work very well for me, I've used them for years and never had any problems...

The '500' comes from one tablet in 1 litre of water making a 500ppm solution, so one tablet in a gallon makes a 100ppm solution. Each of these tablets is about 3g, so max is right - your 400mg tablets might be a bit weedy. Does the pack tell you the ppm of the recommended solution?

The tablets were supposed to be a direct replacement for Sodium Hypochlorite, but more effective, releasing more free Chlorine into solution.