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Discussion in 'Help and Advice' started by diver 807, Aug 16, 2012.
when do you guys change your di resin,ie what reading
i change mine when it goes from 0 to 1
as I do ,but Iv'e read elsewhere that some go to 10 which I feel is asking for algae problems
Yep, if you're using resin you may as well keep it at 0, or not bother as when its exhausted it'll creep up pretty quick.
Always check that the resin is tight as well ;-)
whilst on the subject, how do you change it, removed the cap and appears to be sealed in with like a highly compressed floss?
There should be a floss cap which comes out in one piece, it stops the resin running out with the water..
What DI unit have you got (pic may help)
so just prise it off with point of a knife?
Yerp, should come out easily enough..
When putting resin back in mix some ro water with it to remove the air pockets,
Works a treat!
still not getting your answers as to what reading you change it
Anything above 0
Gordon you were asking how to change di resin and got me wondering about your algae problem.how long have you had your ro unit and when did you last change your di resin,might be a daft question but just a thought
2 or 3 years, never have changed the resin but readings always been 0, so you think it wants changing?
Might have a point depends on how ofter you change the filters and when was the last time you calibrated the unit that reports as 0 i bought some fluid off ebay to test my hand held so i can check the inline meter i have
just done a phosphate test on a fresh batch of seawater i mixed yesterday and 0 reading so puts that out the window unfortunately - pity
correction, very slight reading about 0.03
thats the upper limit for Po4
I change mine when it starts to flicker on to 1,
I generally get aroung 700litres out of it before it is exhausted,
Thats with 650ml of colour change resin,
what 0.03!!!! but surely that cannot result in a tank reading of .5 or above?
so you are saying a fresh mix should be zero, and could this be explained by the resin?
When I have RO at 0 TDS and do a salt mix the Po4 is 0 on D&D
when my tank reaches 0.03 I crop the Cheato so it can grow more
if the reading is above 0.03 I start to use GFO in a reactor, which isn't that often
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