Seachem Purigen : Placement And Recharging Questions

[KimA]

Hi guys,

I've just bought some of this for both my tanks - it says to use bleach to recharge when necessary!

Question is, what sort of bleach? Surely not Domestos !

Does anyone on here use Purigen, and if so, what do you use to recharge it, and how do you go about it?

Also, I've got Eheim external filters, and have put the bag underneath the blue filter pad in the middle - that okay?

Thanks
Kim