Mixing concrete near a reef tank?

jessezm

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Hey folks, another random one for ya!

My tank, remote fuge, and sump are in a partially finished part of my basement. However, there is a "secret room" I discovered in my basement right next to the current fish room, which happens to be directly below where my 150g display tank is currently residing and awaiting water... I will soon be plumbing them all together.

The room is 10 X 12 ft and ideal for a fish room, but has a dirt floor. The room will house my current frag tank and remote fuge and sump (45g tank, 33g fuge, 36X18" sump), water change/mixing station, and shelving for supplies, etc. I may add a slop sink at some point with a sump pump to expel water...

I have ordered gravel base and concrete and will be pouring a slab and wiring up this room shortly, but I have a question:

It would be most convenient to mix the concrete in the room itself and do it in two sessions. However, it is so close to the current tank, that I am concerned about the dust from the bags of dry mix as I pour them into the mixer (I have a 1.77 CuFt electric mixer I'll be using).

Mixing, dumping, and working the concrete will be much easier for me if I do it in this room, as opposed to outside mixing, and bringing it in in buckets....

I could potentially hang a sheet or some plastic sheeting in the space dividing the two rooms, but with only two 4"X 4" openings in the foundation wall to the outside, I am worried about ventilation in there (especially if I'm in there for 5 hours!).

Do you all have any recommendations or warnings? I don't want to be too stupid here...

Thanks!
 
I know the dust from concrete has silica in it so I believe it wouldn't be good if it got in the tank. Any place you could put maybe a box fan to vent it out side as much as possible and plastic off the tank areas?
 
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Cover your tanks with plastic, put sheets or canvas drop cloths on top of the plastic to catch all the dust. If possible run an airline from your skimmer outside. Maybe run some carbon and float in your sump to help catch any dust that makes it into your tanks.
 
A secret room? Make it a brothel and charge couples by the hour
 
LOL maybe I'll just have a speakeasy

Good advice y'all, thanks! well, most of you at least...
 

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