Cyberfin Posted June 10, 2006 Report Share Posted June 10, 2006 I've been checking out manufacturers websites and get the impression that, for reef aquarium use, a 4-stage unit is the way to go. The units I've been looking at are listed as producing between 25-35 GPD. Estimating currency conversion and freight, it will cost somewhere between NZ$400-450. I've been searching for anything available in NZ but most I find are 2-stage units, a couple of 3-stagers but none with a price or any mention of reef tank benefits. Which brings me to a couple of questions I have.... -Does anyone feel the extra $ towards a 4-stage unit is money well spent? -Are there any reasonably priced units available in NZ? I'm sold on the idea of having one, just want to strike a good cost/efficiency balance. Any thoughts? Quote Link to comment Share on other sites More sharing options...
slappers Posted June 10, 2006 Report Share Posted June 10, 2006 RO/DI Units: Preston's of Moore St, Howick, Auckland Presumably you've talked to people like: http://www.purewater.co.nz/index.htm and http://www.wellingtonwaterfilters.co.nz Quote Link to comment Share on other sites More sharing options...
suphew Posted June 10, 2006 Report Share Posted June 10, 2006 Cheers Slappers, I tried a couple of local pleaces in Wlg and was quoted $700 and $1000. But this included DI which adds $100+. I was going to get 1 off ebay. Spinedoc got his from there. It only cost him $200-300 landed but the RO only lasted 6 months so he has had to replace it and the DI etc. He thinks it was faulty or a second and thats why it was cheap. Cyberfin, any RO/DI with 4 stages or more is heaps for reef tanks, there is nothing different with the 'reef' ones. The extra stage either make the expensive parts of the filter last longer (prefilters) or take out more stuff (DI resin). So go for as many stages as you can afford. You can also get TDS meters for under $100 these will tell how well your filter is working and when it needs replacing. Quote Link to comment Share on other sites More sharing options...
Fee Posted June 10, 2006 Report Share Posted June 10, 2006 4 Stage RO-Man RO/DI Filters available from: Wonderworld Aquarium & Pet Centre, Rotorua Northland Aquarium & Pets, Whangarei Tropical Blues Ltd, Tirau Contact Stores directly for further details. Quote Link to comment Share on other sites More sharing options...
Cyberfin Posted June 11, 2006 Author Report Share Posted June 11, 2006 Thanks for the advice everyone. I think I've found what I'm looking for now. Have a goodie Simon Quote Link to comment Share on other sites More sharing options...
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