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Animal-Chin
04-04-2017, 05:24 PM
So I recently started a thread about my corals dying right after water changes and I think I've figured it out.

I use an RO filter system to clean my water before adding salt and putting it in my tank. I've been using the same system for 4 years and change my filters out quite regularly even though they hardly ever look dirty.

I use empty 5 gallon blue water jugs to collect the water from the RO system, I then add the salt into the jugs, mix, let sit over night and away I go.

Last week I made 3 jugs, capped them and put them where I store them. I pulled them out 4 days later and popped the cap off to add water and I couldn't believe the smell. CHLORINE! My jugs smelt like a swimming pool! The chlorine in Maple Ridges water is so strong now it was getting through my charcoal filter of the RO unit and because I was capping the jugs it couldn't evaporate. Turns our I was pouring 15 gallons of chlorinated water into my tank.

Best guess is because of the water run off and huge rains in March they are over chlorinating the water to kill any bacteria.

This is more of a heads up for reefers in the Maple Ridge area.

duncangweller
04-04-2017, 05:59 PM
Our water stinks in Walnut Grove too. Really quite a strong chlorine smell.

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xoticlover
04-04-2017, 11:14 PM
I live in Maple Ridge and I havent noticed the Chlorine smell when doing recent water changes. I will make sure to add a little more Prime when I do the next ones.

IronChefItaly
04-04-2017, 11:15 PM
Really common misconception that every RODI unit is equipped to remove chlorine/chloromines from municipal water supply. Very few are, and if your carbon manufacturer doesn't state it, chances are the majority of them are getting through - this is why I still dose my RODI water with Aquavitro Alpha. BulkReefSupply covers this topic very well, see the video below.

https://www.youtube.com/watch?v=tEL8KvDr3-k

dcw1sfu
04-04-2017, 11:36 PM
Appreciate the heads up. I think my carbon filter is a chloramine plus but ill check my water to male sure.

Ryanerickson
04-04-2017, 11:37 PM
Actually noticed my water outta sink really is strong smelling today.

kyl
04-05-2017, 12:06 AM
A strong chlorine odor will usually occur if they're main flushing in your area, be it from routine maintenance or pipe replacement and repair (main breaks). You can confirm if routine maintenance or a repair has taken place with a call to your city's engineering customer service number. Additionally they should have put local notices out before doing any main flushing maintenance work.

AFIAK none of the drinking water in the GVRD contains added Chloramines, Metro decided long ago that Chlorine treatment would be the safest option for the regional population and ecosystem. You can confirm as such though again with a call to your city's engineering customer service desk.

IronChefItaly
04-05-2017, 12:47 AM
Appreciate the heads up. I think my carbon filter is a chloramine plus but ill check my water to male sure.
Of everything in tapwater, chlorine/chloromine is the only thing we know to be present at levels that are directly harmful to our livestock. To operate a reef successfully long term is all about acknowledging and mitigating risk. At the expense of a few ml of Seachem Prime or Aquavitro Alpha, you eliminate any risk of fluctuating concentrations or the actual effectiveness of your carbon block. One of the more worthwhile practices to adopt in my mind.

Myka
04-05-2017, 04:38 AM
Really common misconception that every RODI unit is equipped to remove chlorine/chloromines from municipal water supply. Very few are, and if your carbon manufacturer doesn't state it, chances are the majority of them are getting through

I test the water from my RO/DI after carbon and before RO membrane (I installed a tee and ball valve just for this purpose) about once a month. The tap water here has about 2 ppm chlorine and the single 1 micron carbon block on my RO/DI has no problem breaking the chloramine bond and removing the left over chlorine. I think the people selling the chloramine blocks are doing a good job advertising. :)

Chlorine also damages RO membranes really badly and really quickly. Any chlorine getting to it is going to wreck the membrane in no time. If typical carbon blocks didn't work good enough I think we'd see a lot more people with toasted RO membranes.

My RO membrane is over 6 years old, has made thousands of gallons of water and still puts out only 3 ppm (about 260-280 ppm tap water). No way could my membrane last this long if chlorine was getting to it.

dino
04-05-2017, 04:17 PM
you have a reading of 2ppm of free chlorine out of your tap? I find that really hard to believe gosh I keep our swimming pools at that. do you mean .02 because that would make sense

Myka
04-05-2017, 05:42 PM
you have a reading of 2ppm of free chlorine out of your tap? I find that really hard to believe gosh I keep our swimming pools at that. do you mean .02 because that would make sense
No, total chlorine, not free chlorine it's in the form of chloramine here.

dino
04-05-2017, 08:00 PM
oh I see

tang daddy
04-05-2017, 10:00 PM
Start aerating the water overnight before water changes. As a good precaution I have my ato and salt mixing water aerated 16hrs a day, why 16 hrs because they are on the apex with my gyre and the gyre only runs from 12pm till 5am.

TimT
04-06-2017, 07:43 PM
If your getting chlorine out of your ro unit then the carbon filter is exhausted and the chlorine will have eaten your ro membrane as well, especially if it's a CTA one. I'd recommend replacing both and then increase the frequency of carbon filter replacement.

IronChefItaly
04-08-2017, 05:30 AM
I test the water from my RO/DI after carbon and before RO membrane (I installed a tee and ball valve just for this purpose) about once a month. The tap water here has about 2 ppm chlorine and the single 1 micron carbon block on my RO/DI has no problem breaking the chloramine bond and removing the left over chlorine. I think the people selling the chloramine blocks are doing a good job advertising. :)

Chlorine also damages RO membranes really badly and really quickly. Any chlorine getting to it is going to wreck the membrane in no time. If typical carbon blocks didn't work good enough I think we'd see a lot more people with toasted RO membranes.

My RO membrane is over 6 years old, has made thousands of gallons of water and still puts out only 3 ppm (about 260-280 ppm tap water). No way could my membrane last this long if chlorine was getting to it.
Well there you go, never listen to any one source without a bit of independent information or a dash of your own judgement. I truly missed considering that point initially but I'm still curious if Animal-Chin's RO membrane is truly exhausted. Animal-Chin, have you been monitoring your TDS through reliable methods?

Myka
04-08-2017, 12:17 PM
If your getting chlorine out of your ro unit then the carbon filter is exhausted and the chlorine will have eaten your ro membrane as well, especially if it's a CTA one. I'd recommend replacing both and then increase the frequency of carbon filter replacement.
Totally agree!