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Hot tub as aquaponics tank?  RSS feed

 
Gilbert Fritz
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Location: Denver, CO
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I could get an old Jacuzzi style hot tub for an aquaponics tank. To my mind, this seems almost perfect: a water proof container, a pump, and a heater. (I have not actually seen the tub in question; I want to know if it would be any use before I go look at it.) Would there be any problems that I have missed? I am not experienced with aquaponics, though I have read about it.
 
Brian Giles
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The thing you have to watch out for on hot tubs is the jet nozzle holes leaking. You can fill them, but just be aware that you will have to do it. Your better bet would be to find a small above ground swimming pool and use that. It will be a more uniform depth and will hold more water which in turn will make it easier to keep balanced
 
R Scott
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Location: Kansas Zone 6a
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Yes they have a pump, but it is usually an oversized powerhog for the application--if it works at all.

You definitely have to worry about leaks, and the pump may or may not work--but if it is free you can spend a little to repair it and still be OK.

The problem is they are built to maximize area for minimum volume--exactly the opposite you want with a fish tank. If you have the space it isn't such a problem, though.
 
Peter Ellis
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Location: Central New Jersey
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I am currently in the position of considering repurposing my hot tub to an aquaponics tank. One area of concern I have is that the pump may be overpowered for the purpose, not just in terms of efficiency, but in terms of excessive turbulence for whatever I might try to grow in the tank.

At the very least, it's a large thermal reserve in my greenhouse...
 
Jeremiah Robinson
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Location: Madison, WI
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You could probably use the hot tub as a place for your fish to live. They don't mind water turbulance. You could even leave on the insulated cover if you cut a window into it. You would then have to plumb then hot tub and add a pump to move the water to some grow beds.

I've been thinking of adding a hot tub to an aquaponics system for use doing water changes in the winter. You bring some friends and sit int the hot tub for a while. When you're done you put on the cover and turn on the controller which drains the hot tub water into the aquaponics system when it needs heating. The excess water in the aquaponics runs through the overflow outside the greenhouse.

So, water change, system heating, and nice hot tub time with friends all in one.
 
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