Ro/di

Hey guys can you reccommend me a good RO/DI unit for my 90 gallon reef tank, also if you guys know a good chiller... thanks

 

Check Air water Ice, they are a sponser and i heard they are good systems, affordable too.

 

There's plenty of RO/DI units available. Aquaboy's suggestion merits consideration ... I've only heard good things about them in here. ....eBay is also worth checking out .... lot's of stuff there too.

As to chillers....., I've only read one basic thing about them.....effective but pricey. And the price can rise quickly ($$$$) when there's more water volume to chill. If affordable they are the "cat's-meow". If not, there are quite a few members in here (myself included) who opt for having a simple fan blowing across the top of the tank which is 100% effective (to the point where the heater comes on) but top-offs are a MUST! ......save a bunch of money but just top-off now and then.

My two bits worth.

 

Try Air Water & Ice they have excellant customer service and the prices are hard to beat. Plus they are a 3reef sponsor and that helps keep this sight up.
Chillers are a must if you can't keep your water temp stable. I use a TradeWinds that I picked up from Premium Aquatics just to make sure my temp stays level. I evaporate so much water that I am going through RO/DI cartages about every 5 to 7 months because of the fans on the system and the hard water in Indiana. Now I am able to turn the fans off and keep peace of mind that the tank will keep normal temp.
Once you get a bunch of livestock built up in the tank a chiller seems like pretty cheap insurance to me next to a generator...:-/

 

Look into the Kold Steril systems No waste and really good water and a huge capacity and makes water at a very high rate several gallons per min.