Chicago water quality

Grebex11

Member
Hey guys,

Question for those of you who live in Chicago. I am in Wicker Park, for the record. I've had a reef in the Chicago neighborhoods for about 3 years. I've always used tap water while using Prime and haven't had any issues. Curious, has anyone else had a similar experience? What do you think of Chicago tap? Is RO necessary?

I moved and am starting a tank from scratch so looking for help before I start cycling again. Thanks!
 
I always recommend RO water.
Not worth fighting nutrients in the water.

For the record I live in Des Plaines and my water before RODI is about 10-15 TDS so it is pretty clean already.
 
Cut out adding prime and just use RO water, your tank will thank you in the long run. I took a reading from my tap the other day with my TDS meter it read 150ppm of TDS not bad but still lots if nasty stuff in that water.
 
Hey guys,

Question for those of you who live in Chicago. I am in Wicker Park, for the record. I've had a reef in the Chicago neighborhoods for about 3 years. I've always used tap water while using Prime and haven't had any issues. Curious, has anyone else had a similar experience? What do you think of Chicago tap? Is RO necessary?

I moved and am starting a tank from scratch so looking for help before I start cycling again. Thanks!


Similar experience. Never used my rodi in Chicago.
 
Slightly different perspective for me, I was using Chicago water on my FW tanks after running through sediment filters and carbon filters to remove chlorine, I'm positive it resulted in the death of my FW rays.

I suspect either extra chemicals were dosed this spring to combat all the rains or pesticides were in the water, either way I lost $5k worth of fish in the matter of a month when all my parameters were showing the same. If I had a reef I 100% would use RO, not worth the risk in my mind.
 
There are many ways to skin this cat. If you were FO or FOWLR maybe. But a reef I imagine you will be dealing with all sorts of nutrient and algae issues and bad headaches.

That said, people have done it.
 
Slightly different perspective for me, I was using Chicago water on my FW tanks after running through sediment filters and carbon filters to remove chlorine, I'm positive it resulted in the death of my FW rays.

I suspect either extra chemicals were dosed this spring to combat all the rains or pesticides were in the water, either way I lost $5k worth of fish in the matter of a month when all my parameters were showing the same. If I had a reef I 100% would use RO, not worth the risk in my mind.

Interesting that you say that. My reef looked great for a couple years then before I moved it started going downhill. All the parameters I tested looked perfect. It was around the same time you lost your fish...
 
There were several fw ray keepers that lost rays and a few more that had theirs go off feeding for days or weeks. Fortunately most people faired better than mine did. Regardless nearly all were on Chicago water supplies. I regret not sending water samples to be tested. I've still got the rays in my freezer, I am still thinking about having them tested.

Regardless I'm running a whole lot more carbon on my system now.
 
Always test your water if you use tap! Granted on my reefs I used RO/DI but on my koi ponds, I use tap. One year a few years back the city switched back and fourth between chlorine and chloramines and it shocked my pond. I think they were purging the lines or something. I always have a chlorine and chloramines kit on hand since then.
 
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