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UK Purigen Users Only

as I clean my canister filter monthly, I decided to regenerate purigen monthly as well and find thats the most effective way to get them 'white' - i.e. regenerated them when purigen is at most 'very light brown'. I use 5% bleach undiluted.

Previously, I only regenerated them after they turned brown (eg: after a few months) but once they turned brown, I found that they never turned white again in 5% bleach.
 
Not so sure Purigen can be regenerated as often as claimed otherwise it would keep its colour creamy white? I suspect for Aquascaping contests they just replace with new bags for photographs /final pictures. Same with Polyfilters quickly get embedded with what they remove Not to say they dont do a good job
 
PARAGUAY said:
Not so sure Purigen can be regenerated as often as claimed otherwise it would keep its colour creamy white?
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Right. It might have something to do with how dirty you let it get before cleaning/regenerating it. I've read about people reusing it 10 times before tossing it. No way that would ever work for me - I get 2-3 times out of mine, but I might be leaving it in the filters for too long.
 
MichaelJ said:
Right. It might have something to do with how dirty you let it get before cleaning/regenerating it. I've read about people reusing it 10 times before tossing it. No way that would ever work for me - I get 2-3 times out of mine, but I might be leaving it in the filters for too long.
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Wow, I’d be gutted if I had to throw them away after 2-3 recharges, they’re far too expensive for that. I’ve had more than 10 recharges out of a couple of my older ones - in fact I’ve never thrown one away yet, and they’d come out of the filter dark brown and covered in sludge sometimes.

I’ve not used Purigen for about a year though, since I started adding botanicals to the tanks.
 
Wookii said:
Wow, I’d be gutted if I had to throw them away after 2-3 recharges, they’re far too expensive for that. I’ve had more than 10 recharges out of a couple of my older ones - in fact I’ve never thrown one away yet, and they’d come out of the filter dark brown and covered in sludge sometimes.
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Yeah, good point. I might have been a bit too picky in the past when I was pursuing uber clear neutral water.

Wookii said:
I’ve not used Purigen for about a year though, since I started adding botanicals to the tanks.
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Yep, I yanked the Purigen out of the tank where I keep shrimps as well after starting with dried almond leaves.

Cheers,
Michael
 
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