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You see, my regal tang has developed ich and I'm treating him with copper. It got so bad that I decided to give him a FWD.
In checking the fresh water for the dip, I used a seneye to check ph, whilst I was there, I noticed that the ammonia was highish for recently made RODI, then it got higher forcing me to dip with some seachem prime in the water.In the end, it went up to 0.078ppm with no input from anywhere.This it would appear is chloramines that don't show up on a TDS meter (I found out after a bit of googling), this indicates resin exhausted, and potentially, in the first place my carbon block not being suitable for removing chloramines.In future orders to Vyair, I'll buy the mix of cartridges that has the chloramine- removing carbon cartridge.Who knew right?
Following an earlier thread here, I checked with my local water supplier who said they aren’t adding chloramine to my tap water and have no immediate plans to do so Sent from my iPhone using Tapatalk
My god you've been unlucky! Fingers crossed he comes through it.Yeah apparently it doesn't affect the waters conductivity enough to register on the meter. Silicate can slip through the same way.I've bought one of those chloramine blocks from Vyair but not plumbed it in yet as the block is about 2mm too short for the housing I have. Seems like it's missing a washer or something but it isn't. 🤷♂️
Sorry, I forgot to mention that today, white spots have all but gone, so clearly FWD had the desired effect.Now it's 30 days copper power treatment!
@ajm83I found this too, there needs to be a rubber washer at the top, these vary by thickness. I found that by changing the washers, packing it at the bottom of the cartridge with a thin poly washer or a combination of the two, it will tighten up. All you need to do is screw the top down till it just grabs the washer.To check it's ok, you could look at the washer to see the slight "indentation" that the top plastic housing makes on the washer.In fact, I think I bought a refillable cartridge from ebay to get things to fit (but this was because I had the same problem not with a carbon block but with a refillable resin cartridge).So packing up from bottom/poly washers from plumbers merchants, will probably help most.
Thanks! 👍PS About the ammonia coming through, that can also just be from the resin getting full (regardless of chloramine). You'd think when it's running out that it would just let everything through but it doesn't, the weakest charged ions get displaced first. So you get a rush of ammonia, then silicate, etc etc in order of how weakly charged they are. I'm @ work now so can't find it but there is a BRSTV video which demonstrates it.
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