Smelly Saltwater?

I was doing some cleanup work in my fishroom last night and decided to peek into my saltwater mixing bin to see if I had enough in there for another water change this week.  When I lifted the lid (Brute 32ish gallon) - good lord oh mighty.....it was stank-y!  I figured it might need to be aired out...but dang...my basement started to smell.  I have a MJ pump in their for circulation 24/7.  I mixed this batch about 2 weeks ago.  Had a heater in it most of the time...had to pull the heater out and put in DT in place of a suspected failing heater....I was under the assumption that good salt water should have a 'fresh' saltyish smell if any...??
1.  Is this normal?  I'm thinking not.
2.  What is the cause of this? 
3.  What should I be doing different?

 

Forgot to mention that I am OCD on checking my TDS.  On my RODI - it shows 0 TDS coming out.  As it comes out of the RODI, I will spot check it by filling a glass 1/2 full of RODI water and using my TDS Meter to test.  TDS Meter will show anywhere from 0-3...usually 0.  Now....once the RODI water has been in my other 20 gallon Brute container (I/E/. filling for the day) and I check that water....TDS is usually up to 5 or 6.  I have some RODI that filled my storage unit last night.  I will check it's TDS when I get home....I don't think it's the RODI water...? 
Also - forgot to mention - I am using Reef Crystals.

 

Jason, just mix your salt the day before you intend on doing a water change.

 

Could be a bacterial bloom, sometimes bacteria will grow in your mixing containers especially if there is heat involved. I would dump the stinky water, clean out your can with chlorine bleach, then do a freshwater rinse and add a dechlorinator to it (to rid the can of residual chlorine from the bleach), then towel out and let air dry. Also important to clean the items that were in the can as well as best you can, i know certain items you wont want to soak in bleach but maybe take a bleach rag to them then soak them in the dechlor when you dechlor your trash can.

 

I would agree it's bacteria. I would not keep it. Bleach the container.

 

I usually have enough pre-mixed water to last me about 2 months and have never had what you are describing.

I think you are either not circulating/aerating enough or your keeping it too warm causing a bacterial bloom.

Definitely don't use it and clean your container like others mentioned, just easy on the bleach!

 

I bleached it tonight and then rinsed it out with RODI waste water (since i was filling my RODI tub at same time. Wiped it out. Rinsed it again and used PRIME. There was some brown slimy stuff on the bottom. Not a lot but some. I have a MJ600 in a 32 gallon Brute...and had temp at 77. Do I need a bigger circ pump or lower heat?

 

I use an m1200 in my trash can. I don't usually heat my water, maybe u can turn your heat on
24 hrs before u plan on using it or try not running heater as warm.

 

Definitely more circulation and lower the temp to about 75. Reef Crystals and most other salts will leave a residue (mine has always been brown w/ IO, RC, Coralife and Red Sea). It should not be stinky :=0) I have kept heated & aerated SW in Brutes for 4 weeks with no problems...I always have at least one Brute ready for a tank WC just in case of an emergency WC is needed /DesktopModules/ActiveForums/themes/_default//emoticons/smile.gif

 

Hey I do a water change every Friday so on Wednesday I turn on the flush the RO/DI then turn it on. On Thursday I throw in the pump so it can circulate for a day I heard doing this reduces the ph from going down. Then on Friday morning I put in the salt and heater so that night it is ready to go. I think leaving your water in a trashcan for more then a few days is a bad idea because the alkalinity and ph will go down everyday.