Do you Use RODI water?

[Aquattro]

Originally Posted by CM125

It seems the results are quite in favour of using it, although I wish more local people would chime in.

You don't need locals to chime in, lots of people in Calgary use tap water. It's fine, almost always. It's "what if" you need to think about. Or, you want the absolute best you can get and don't mind spending a couple hundred bucks. Can you run a reef without RO? Sure. Will it be fine forever? Ya, likely. Will something in the water kill all your corals one day? Could happen So you decide how much risk you're willing to go with.

[SteveConn]

...but wouldnt it be nice if we could keep the Calcium and hardness of Calgary water!

I'm in deep SE Calgary. TDS is high 200's. Sure go through DI resin fast. I found I need dual DI canisters to get my TDS down to zero.

Keeping my spent DI resin to recharge once I have enough to make it worth the hassle. See how well that works.

[Karsten]

I live in NW Calgary.

I always have used RO (2-5ppm tds) or RODI (0-1ppm tds). I didn't see a difference.

My tap water right now reads over 200ppm tds.

Hope this helps

[crimper]

I used to raised/bred Discus, the most sensitive fresh water fish that you could ever keep. Most discus keepers use RO/DI as discus is very sensitive to Chlorine and Chloramine, however based on my experience water here at the Lower Mainland is almost pure and Chlorine is the only thing that you need to watch out during Winter/Spring months.

A pinch of Prime during Winter/Spring time is all I use.

[Travillion]

Originally Posted by crimper

I used to raised/bred Discus, the most sensitive fresh water fish that you could ever keep. Most discus keepers use RO/DI as discus is very sensitive to Chlorine and Chloramine, however based on my experience water here at the Lower Mainland is almost pure and Chlorine is the only thing that you need to watch out during Winter/Spring months.

A pinch of Prime during Winter/Spring time is all I use.

This is true, our tap water is brilliant. Especially Richmond's (less time traveling through pipes). Tested at only 12TDS, and didn't even register for chlorines.

However, I switched to RO/DI water a couple of months ago. I switched without knowing what our tap water was really like, I just assumed my tanks could benefit from higher quality water. I would actually still stick with my decision though. I ran a waste bucket for the first few weeks as a comparison, and let me tell you, that water STUNK, while the reservoir water had no scent and registered 0TDS. Even though we have very clean water, there are still clearly some nitrates floating around in there that could have an impact. I would also like to include that since making the switch, an algae problem has drastically decreased.

All that having been said, I have been keeping freshwater for nearly 10 years without RO/DI (obviously not as substantial of an ordeal), and never even questioned my water quality.

[SanguinesDream]

As we had a huge Pembina oil spill about 10 yrs ago upstream of our water intake, I have almost always used a tap RO unit.

However, as I move from a softie dominant tank to a sps dominant tank, I am upgrading to a 5 stage RODI unit.

[hfp75]

I live in the SW and my TDS here at home is 150-200'ish. Ive always used tap water - no issues that I know of. I recently was given a RODI system and will be installing it when time permits.

I'll run with it for a few months and see how my main tank responds...

I am guessing that there will be nothing noticeable. However, if there was ever a problem with the water you'd never notice if your running RODI.

Its that 1-2% chance.

[gobytron]

Pretty easy to see what's in your water...

http://www.calgary.ca/UEP/Water/Page...arameters.aspx

[Aquattro]

I think that's a good sample of what is supposed to be in your water. If something else enters the water mains post testing site, it's invalid. Having RO protects against that. Also, the city doesn't test everything that might impact a reef.

[Ginu]

Originally Posted by Aquattro

I think that's a good sample of what is supposed to be in your water. If something else enters the water mains post testing site, it's invalid. Having RO protects against that. Also, the city doesn't test everything that might impact a reef.

Also how often do they test the water? i doubt its daily and I doubt any reefer would log on to see whats in the water on any given day...