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#31 |
Senior Dragon
![]() Join Date: Oct 2001
Posts: 3,125
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Btw bro , are u using a wave maker ?
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#32 |
Dragon
![]() ![]() ![]() ![]() ![]() Join Date: Jun 2002
Posts: 1,369
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#33 |
Dragon
![]() ![]() ![]() ![]() ![]() Join Date: Jun 2002
Posts: 1,369
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#34 | |
Arofanatic
![]() ![]() ![]() ![]() Join Date: Apr 2004
Posts: 486
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![]() Quote:
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#35 |
Dragon
![]() ![]() ![]() ![]() ![]() Join Date: Jun 2002
Posts: 1,369
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#36 |
Senior Dragon
![]() Join Date: Oct 2001
Posts: 3,125
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#37 |
Dragon
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Posts: 1,369
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#38 | |
Dragon
![]() Join Date: Jun 2007
Posts: 2,433
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The difference is that in RO/DI the RO membrane will first remove alot of the impurities, so when the water goes into the DI resin, there is less to remove. Compared to the pure DI, all the impurities will go straight to your DI resin which removes them. Both output pure TDS 0 DI water, but the DI system will require much much more frequent replacement of expensive DI resin, whereas the RO/DI system will have much less replacement of the DI resin. RO membrane can easily last 3-5 years before needing to be replaced. However, if your only use of the DI system is for a small amount of water, then you won't feel the pinch as much la. I use my RO/DI system for my freshwater tanks (6x2.5x2.5 and 4x2x2) as well as my marine tanks (3x2x2 and 1x1x1) so it definitely makes a huge difference, since I use over 1000 litres of purified water a week. |
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#39 |
Arofanatic
![]() ![]() ![]() ![]() Join Date: Apr 2004
Posts: 486
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yeah.. 2 feet think ok for DI.. + don't over feed ur fish should be ok.. if 6ft use DI only think very fast pocket got a hole lol.. last time my cube tank i only change water every 2 weeks and top up abit every weekend.. its sustainable.
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#40 |
Dragon
![]() ![]() ![]() ![]() ![]() Join Date: Jun 2002
Posts: 1,369
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plus RO/DI need to ensure that the water pressure is of a certain level right? thats why i opted for DI
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