So basically add on one of those carbon cartridges at the end of the RO?
Like a 5 stage unit?
If you call your local city office they can tell you hoe often amd if they use chloramines. Most municipaloties shock their systems a few times a year. I don't make rodi water the week they do it.
You know, to be safe we ought to be testing for chlorine and ammonia in the fresh water coming out of our RODIs just as a matter of habit. Just to be safe.
Still, better safe then sorry. Filters are changed MAYBE once a year for many. The OCD will change yearly. Water is the number one thing we should be worried about when it comes to keeping a healthy tank. It's less then $50 for peace of mind.
You think YEARLY is OCD. Try every 3 months for me!!! AND I STILL HAD THE ISSUE. Mind you i was not using the right carbon for chloramines.
I also am looking into BRS because they sell the chloramine carbon in bulk and you can refill their cannisters. Still checking out if its worth it though vs just buying the correct carbon block with not having to refill. Havent had time to do the math.
The catalytic carbon supposedly suppose to last 5000 gallons of total water, don't know if it's being shocked with high doses that it would go faster.
If reeksreef is correct i have to change every 7 months. Remember your ro/do usually has a ratio of 4:1, so for every 1 gallon you make you have 4 gallons of waste. All that water goes thru the carbon filters. So you have to fiqure 5 gallons total.
I make 142 gallons per month of ro/di. Seventy for WC, 74 for evapration, thats 142 gallons a month. 5 gallons of water thru carbon and sediment filters per gallon of water= 710 gallons per month. If carbon is depleted at 100% by 5000 gallons, I can use for 7 months at 100%. I hate taking anything to 100% depletion cause you dont know what is happening in between. Hence my hesitation with the risks.
I always allowed TDS to be my guide, but as i have learned the hard way, its not enough.
Long story short, i will be researching a good chloramine test kit to compliment my TDS.
You probably just need a chlorine test.
Marvin- Chlorine and Chloramines are two totally different things. Chlorine is easily eliminated with regular carbon and or water just sitting around. Chloramines are not.
Please check out the article i mentioned and the fact that I checked out the Pembroke Pines Water plant for the levels. It it well beyond the acceptable rate for marine animals. Dont know about where you live, but it is definitely a concern for some in our surrounding community.![]()
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