Thread: Question for Syd please!

Hi Syd. If you leave your active carbon out in all weather's in the sack, open to the weather. Will it spoil? Thank you

Originally Posted by Maddog1

Hi Syd. If you leave your active carbon out in all weather's in the sack, open to the weather. Will it spoil? Thank you

Not Syd but here's my 2pennerth

outside in all weathers it will absorb some of the air pollution the rain picks up as it falls as it gets the carbon wet, ( i wouldn't worry too much myself)
but it does become biologically active exposed to water and a bacterial food source (dirt)

if a few weeks or a month ot two i'd probably use it if it was a full sack (it's expensive stuff)
if it was less than a full sack and had been out for the best part of a year or more i'd bin it.
but that's just my own opinion based on zero facts

Originally Posted by davethefish1

Not Syd but here's my 2pennerth

outside in all weathers it will absorb some of the air pollution the rain picks up as it falls as it gets the carbon wet, ( i wouldn't worry too much myself)
but it does become biologically active exposed to water and a bacterial food source (dirt)

if a few weeks or a month ot two i'd probably use it if it was a full sack (it's expensive stuff)
if it was less than a full sack and had been out for the best part of a year or more i'd bin it.
but that's just my own opinion based on zero facts

Thank you Dave.

Originally Posted by Maddog1

Thank you Dave.

how long has it been outside?
if i did use it, i would give a damn long flush through after filling the big blue

Originally Posted by davethefish1

how long has it been outside?
if i did use it, i would give a damn long flush through after filling the big blue

Over a year Dave.

Originally Posted by Maddog1

Over a year Dave.

your choice, but personally i wouldn't risk it if it got wet

Thank you Dave. I ran the hose through the big blue for a good forty minutes full blast to clean the carbon. After that I only running 230ml per minute and there was a hint of pink.

Originally Posted by Manky Sanke

As Dave said, the carbon will have been adsorbing pollution from the atmosphere and from the rain so its life will be shortened which would explain why you're getting incomplete dechlorination at the low flow you're putting through it. You could try lowering the flow rate until you get a clear DPD4 test but it probably won't last very long and since dechlorination is vital for a koi pond, I'd bite the bullet and bin it - sorry.

Thank you Syd.