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IronMonkey
09/20/2015, 12:14 PM
So my DIY stand is now full of electronic equipment. Most of which state that they "are not intended to come in contact with any water". Now that I have my doors on the front, the only form of airflow in the stand is 1/3 open back that is up against the wall (about 2 inches from the wall). It does appear to be a noticeable amount warmer now inside the stand when I open the doors. What I wonder about is this: will the extra warmth cause more evaporation in the sump (seems likely) and will that extra evaporation be mostly trapped inside the stand and collect on/in all the precious electronic devices? Should I install a fan that forces room air into the stand from one side and let it push out the back against the wall?

Any thoughts, opinions or experience you are willing to share?

Thanks,
-Adam

davocean
09/20/2015, 01:01 PM
You may get away w/ just a couple vents if you can add them anywhere easily or conveniently, and if that does not solve your issues then add fans.

seamonster124
09/20/2015, 03:44 PM
I got one of these doing a great job in the sump
http://www.amazon.com/gp/product/B00G059G86?psc=1&redirect=true&ref_=oh_aui_search_detailpage

zachfishman
09/20/2015, 04:33 PM
Ventilate the stand. I thought I had adequate ventilation in mine (Solana stand modded with 5g sump; no fans) and I ended up growing mold everywhere! A pair of cheap USB computer fans (one blowing in, one out) and it's dry as a bone.

thegrun
09/20/2015, 04:42 PM
I would recommend ventilating the cabinet. I use a few computer fans in my cabinet. I have one that runs 24/7 and two more that come on when the water temperature reaches 79. I built my cabinet with a separate side electronics compartment, but I still ventilate the main cabinet sump area. I mounted my fans in the door behind perforated sheet metal with a narrow sheet metal enclosure attached to the doors inside the cabinet so I could offset the fans so no light spills out at night when the refugium lights are on.
The doors from outside of the cabinet:
http://i654.photobucket.com/albums/uu262/greenirons/120%20Gallon/120%20gallon%20tank%20cabinet%20fans%20001_zps1mnlardp.jpg (http://s654.photobucket.com/user/greenirons/media/120%20Gallon/120%20gallon%20tank%20cabinet%20fans%20001_zps1mnlardp.jpg.html)
Side mounted sheet metal enclosure on the doors:
http://i654.photobucket.com/albums/uu262/greenirons/120%20Gallon/120%20gallon%20tank%20cabinet%20fans%20002_zpsblbiokns.jpg (http://s654.photobucket.com/user/greenirons/media/120%20Gallon/120%20gallon%20tank%20cabinet%20fans%20002_zpsblbiokns.jpg.html)
Fans mounted on the enclosure:
http://i654.photobucket.com/albums/uu262/greenirons/120%20Gallon/120%20gallon%20tank%20cabinet%20fans%20003_zpsmjtp2uhx.jpg (http://s654.photobucket.com/user/greenirons/media/120%20Gallon/120%20gallon%20tank%20cabinet%20fans%20003_zpsmjtp2uhx.jpg.html)
Side electrical components:
http://i654.photobucket.com/albums/uu262/greenirons/120%20Gallon/009_zpsq2xn8f41.jpg (http://s654.photobucket.com/user/greenirons/media/120%20Gallon/009_zpsq2xn8f41.jpg.html)

zachfishman
09/20/2015, 05:47 PM
^^^ Nice!

IronMonkey
09/20/2015, 09:19 PM
Thanks folks. zachfisnman, your advice really lines up with what I was wondering. Was going to put a couple computer fans (pretty much exactly what you linked seamonster) in and force some air through the stand, now I know I wasn't thinking crazy thoughts! I don't want to breed mold...

thegrun, I wish I would have considered isolating an electronics compartment ahead of time. I really like how you set yours up, its awesome.

Thanks all,
-Adam

kinnadian
09/20/2015, 09:44 PM
Ventilate the stand. I thought I had adequate ventilation in mine (Solana stand modded with 5g sump; no fans) and I ended up growing mold everywhere! A pair of cheap USB computer fans (one blowing in, one out) and it's dry as a bone.

One blowing in and one blowing out is pointless, you aren't adding any extra capacity you are only limiting total throughput to the weaker of the 2 fans. You are better off with 1 blowing in and 1 passive vent for flow to naturally make it's way out. Or better yet 2 fans blowing in.

Plus the fan blowing out will have a pretty short life span being in constant contact with moist salty air.

On my new build I am planning to make a separate electronics compartment too, I'm just not sure at the moment how to make a waterproof junction box for plugs for my equipment that is the furtherest away under the stand (longer than the lead of the plug).