High Res Temps

[dejayou30]

Man I am fighting tooth and nail to keep these temps under 77°. I add a gallon of near frozen distilled water and it lowers it to about 69°, but then 3 hours later its back to 74° and slowly climbs to 77° by the time the lights go off. I left the AC on in the dark to see if it would cool the water but it only lowered it to 74°. And the funny thing is, it hasn't even been hot out! It was only 61° outside today, so how is my water warmer than that? :wtf:

[tinytoon]

Plastic holds heat fairly well and sorry but I have no idea atm on how to lower it outside of things already mentioned.

[Greenthing]

I have a trimeter and it needs calibrating now and then so i keep a check with a aquarium thermometer to make sure its right.:hippy:

[dejayou30]

I just got a new Tri Meter because my old one crapped out, so I'm sure its calibrated. Luckily I only have about 9-10 days left before I can harvest so I will just have to make do.

[tinytoon]

also if you are not on the 1st floor of where u are at then you could have heat rising from floor/s below you

[dejayou30]

Nah I'm in the basement on a cold cement floor.

[OutportGrower]

Have you tried to move more air in your res? Bubbles will help keep the temp down, as well putting the pump on a timer. Eco pumps run pretty hot as do MagDrives. Big ass air blocks keep mine happy and right at a steady 71.2.

[dejayou30]

I'm currently running a 36W industrial air pump to four 4"x2" cylindrical air stones, and a 4W pump running one of those 12 inch bubble rope things around the outside of the bin. Maybe the air that's being pumped in just needs to be colder?

[LOC NAR on probation]

If pumps are just pushing hot air from the room into water, then warm water. Been there had that problem.

[dejayou30]

Hmm I never thought of that LOC NAR. I guess I just assumed that the colder air was going to be closer to the ground, so they would be pumping the coolest possible air. I now have both my pumps' intakes sitting directly in front of the AC vent. Thanks for the tip! :thumbsup::jointsmile: I am also waiting for some 2 liters of water to freeze so I can throw that in there too.
The temps up to 79 now, went from 74 to 79 during the dark on a 71° day sitting on the cold basement floor. :wtf: