Dont buy a chiller ... use a heat exchenger

[RuGlu6]

Originally Posted by Reef Pilot

Well, I've got a 230g system, so would need a lot of coil then. No room in my tanks either with the live rock and corals, esp if the tubing was stiff,... would make quite a mess with my sps.

So, unless I can find some thinner wall tubing that is also less stiff, probably wouldn't work for me. Is there such a thing as thin wall airline tubing? Plus if it all costs too much, would kind of defeat the purpose, too.

I do have a chiller, but was just wondering whether I could lower my cooling costs (electricity) during the summer.

I looked at the pictures of your system and looks like there is some room in the sump, to the left of your chiller.
Here is another idea, ;
You can use this kit from eBay,
http://www.ebay.com/itm/New-Version-...item20e5c235f3
to place a 2L soda bottle in your sump and, pump cold water through it and use it as a cooling "coil/heat exchanger".
The walls of a 2L soda bottle are thin and providing your cold water temp is below 15C it will help your chiller a lot.
This is still cost effective $18 with free shipping. Instead of buying 200 feet of tubing.
I did not try this, myself, but looks very promising.
jmtcw.