UC - dbxl13 x 24 site - Temperatures throughout system issue

BCrocker · Nov 6, 2011

I have setup a few submersible thermostats in different buckets. I have a Blue Lab Guardian in the Epi. I have a coil in the epi that is cooled by a ChillKing 2HP, set at 58 F with normal differential of 5. Doesn't run that often.

These are the temps currently..

Epi 58 F
Far corner 54 F
Central bucket on left side 66 F

Thoughts? I am thinking maybe a Magdrive 2400 instead of the 1800 would assist with this problem?

BCrocker · Nov 6, 2011

Set it to 60 and I will see what the temps are in an hour or so.. growth has been pretty slow

Buddy Hemphill · Nov 7, 2011

Is everything wrapped up? Could radiant heat be the culprit, beating on your pipes and buckets?

St3ve · Nov 7, 2011

Not to be Capt.Obvious but did you calibrate the thermometers in the same water at first to see how close they measure to each other?

UCHQ · Nov 7, 2011

It would be highly unlikely to have the system temp rise in the middle of the system but then decrease again at the last module....especially given there is nothing to cool down the solution from the mid onto the last modules.

Ur epi will likely be lower because of the coil but other than that the solution will equalize once it homoginizes. The solution acts more as one mass rather than multiple individual volumes of water.

Only in the event you added in a warmer or cooler mass of water might you experience dif temps in mods as the solution slowly mixes and achieves equilibrium.

Try using the same therm to take all ur readings to ensure continuity. Feel free to hit us up if the inconsistencies persist and we'll help u trouble shoot.

noone88 · Nov 7, 2011

That seems pretty standard temperature deviation when I was using a cooling coil. It all comes down to the amount of lighting that you use. The whole UC system acts like a radiator and will absorb the heat in the grow room.

Try to wrap the grow centers and pvc piping with reflectix. That will help.

BCrocker · Nov 7, 2011

Buddy Hemphill said:
Is everything wrapped up? Could radiant heat be the culprit, beating on your pipes and buckets?

The buckets are wrapped around. I will get a pick up soon.

St3ve said:
Not to be Capt.Obvious but did you calibrate the thermometers in the same water at first to see how close they measure to each other?

Yes, I have tested all 3 thermometers in the same bucket, all within .1 of a degree.

UCHQ said:
It would be highly unlikely to have the system temp rise in the middle of the system but then decrease again at the last module....especially given there is nothing to cool down the solution from the mid onto the last modules.

Ur epi will likely be lower because of the coil but other than that the solution will equalize once it homoginizes. The solution acts more as one mass rather than multiple individual volumes of water.

Only in the event you added in a warmer or cooler mass of water might you experience dif temps in mods as the solution slowly mixes and achieves equilibrium.

Try using the same therm to take all ur readings to ensure continuity. Feel free to hit us up if the inconsistencies persist and we'll help u trouble shoot.

I understand the epi would be lower.. it's weird. The entire left barrel of the double barrel setup is about 10F warmer than the right side. I will get some pictures up asap.

noone88 said:
That seems pretty standard temperature deviation when I was using a cooling coil. It all comes down to the amount of lighting that you use. The whole UC system acts like a radiator and will absorb the heat in the grow room.

Try to wrap the grow centers and pvc piping with reflectix. That will help.

I will wrap the pipes next.. just weird how one side is 10 F higher than the other side :s

BCrocker · Nov 7, 2011

Ok so here are some pictures and my findings...

I turned off all air pumps.

I turned off both return valves before the filters.

Turned cold side valve ON, return works and pumps water into the Epi.

Turned cold valve OFF.

Turned hot valve ON. Nothing happens... no current, pump gurggles, no water flower.

Just a shitty phone camera for now.

No wonder these things are not growing.. I turned off all air and there is no water movement at all... :s

BCrocker · Nov 7, 2011

fixed

DowNwithDirT · Nov 7, 2011

so glad I'm not dealing with the headaches of UC growing anymore...

best of luck

thanks for the reminder

Buddy Hemphill · Nov 7, 2011

DowNwithDirT said:
so glad I'm not dealing with the headaches of UC growing anymore...

best of luck

thanks for the reminder

How many rounds did you have success in the UC, before you gave it up?

BCrocker · Nov 7, 2011

meh, I'm not giving up lol. It just some silly issue. This system is going to work great soonish. :)

BCrocker · Nov 8, 2011

Issue resolved, clogged hose. 64.2 to 64.6 throughout entire system.

Zensai · Nov 10, 2011

What we found was best was to get rid of all of the poly hose, and run PVC, just use a union that has a disconnect. We have zero flow issues now, the poly hose has been the biggest challenge. Also watch for hydroton getting stuck in the inline filter.

BCrocker · Nov 10, 2011

Zensai said:
What we found was best was to get rid of all of the poly hose, and run PVC, just use a union that has a disconnect. We have zero flow issues now, the poly hose has been the biggest challenge. Also watch for hydroton getting stuck in the inline filter.

Good call. I will be doing this upgrade next drain!

BCrocker · Dec 1, 2011

95% of issues have been solved. Link to the log here:

UC - dbxl13 x 24 site - Temperatures throughout system issue

UC - dbxl13 x 24 site - Temperatures throughout system issue

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UC - dbxl13 x 24 site - Temperatures throughout system issue

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