Carbon question..

[mbmikebray]

Using Marineland 1200 with BRS reactor to pass water through the carbon, everything submerged in the sump. The pump warms the water to 82 after about 12 hours so I turn the power off until the water is back to down to 80, about another 12 hours and repeat to filter the water. When the pump is off I leave everything submerged in the sump, can this cause any issues when turned back on, eg carbon and water sat in the reactor for 12 hours.
Thank you.

 

[ReefsandGeeks]

When I used to use a canister filter, If I ever lost power for more than an hour or two, I'd dump out the canister and clean it as I was worried about the die off that might happen from the stagnant water. I'm not sure if this was a valid concern or not, but did it as a preventative measure. I might be somewhat concerned about something similar fir a reactor shut off for 12 hours at a time, but can't confirm for sure that anything bad would happen.

How big is your tank? I might be a bit suppressed that running the pump for the reactor is heating up your tank a few degrees. You could also manifold off of your return pump and use that flow to run your reactor. That's what I do, and doesn't add any additional heat to the tank. I mainly do it because I don't have a spare pump.

 

[mbmikebray]

Thank you for your suggestion, the tank is 90g with 30g sump, in south fl so very warm - the system is at 80 year round except for very occasional cold days in the winter. I only intend running the carbon for 1 week each month so haven't plumbed into the return, maybe I should consider as a precaution..