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06-19-2007, 05:31 AM
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#1 (permalink)
| | Astrea Snail
Join Date: May 2007 Location: NC Age: 42
Posts: 60
Karma: 1
 |  Ro/di Gpd ??
I hope I am placing this in the right forum,, My set-up is a 55 gal. I am looking into the purchase of a RO/DI system, How much or how big water do I need per day. I see they are rated in GPD. which one would I need to supply my 55 gal?? In other words what will be to small ?? | 
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06-19-2007, 06:00 AM
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#2 (permalink)
| | Plankton
Join Date: May 2007 Location: Orlando, FL
Posts: 18
Karma: 32
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You don't need much per day to sustain the water level. My 46+10g sump looses a little less than 1 gal per day. When you fill the tank, or do a water change, that's when you need the large volume. If you do a 10%w/c then it's like 5-6gal there.
I would say that just about any RO unit should work for you. It just might take a day or two to get enough water to fill the tank for the first time. _________ 1 true-percula & 2 fox-face firefish. 46-Bow w/ 20gal as sump. DIY wet/dry and DIY overflow. Coral Life skimmer. QuietOne return pump. Eheim ProII canister (just in case my DIY stuff fails). 36" Nova Extreme (2x39w 10k, 2x39w actinic with a fan loud enough to drowned out the noise from the tank) 48lbs. LR. Tank 2 is a 55G Fresh Water w/ 4 Discus. Tank 3 is a 10G fresh with Tetra. | |
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06-19-2007, 06:47 AM
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#3 (permalink)
| | Astrea Snail
Join Date: May 2007 Location: NC Age: 42
Posts: 60
Karma: 1
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So I could buy the 25 gpd and save alittle money compared to buying the 50 or 75+ units. With a auto shut-off it will quit making water when full, plus I may want to get some in a gallon jug and put in the frig for my refreshment. | |
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06-19-2007, 07:04 AM
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#4 (permalink)
| | Giant Squid
Join Date: Apr 2007 Location: Louisville, GA Age: 45
Posts: 3,309
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This is the one I purchased. I have it hooked to my washer's cold water supply using a y to split between the washer and the ro/di. I don't have an auto cut off yet but, will get one in the near future. Here's some pics of the installation. It's very easy to hook up, the directions were scarey, but I figured it out. I use it for top-offs, water changes, watering my outdoor plants and my dog's water. It seems to help my one dog from itching so much and their water seems to stay fresher longer outside. I guess 'cause no phosphates and junk in it.
hope it helps!! eBay: New Reef 6st 100GPD Reverse Osmosis RO+DI Water Filters (item 120111337850 end time Apr-26-07 20:21:46 PDT)    | |
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06-19-2007, 08:07 AM
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#5 (permalink)
| | 3reef Sponsor
Join Date: Dec 2003 Location: ,
Posts: 68
Karma: 27
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Hello,
The GPD usually depends on the water change amount as stated before. Please keep in mind that pressure and temperature play a big factor in the GPD rating. If it gets cold where you live and your water's temperature drops down to 40 degrees, you'll be making 1/2 of the GPD rating. | |
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06-19-2007, 08:43 AM
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#6 (permalink)
| | Astrea Snail
Join Date: May 2007 Location: NC Age: 42
Posts: 60
Karma: 1
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I'm southern NC on The NC/SC state line, not cold much anymore around here. | |
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06-19-2007, 10:04 AM
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#7 (permalink)
| | Giant Squid
Join Date: Nov 2006 Location: Elizabethtown, IN Age: 40
Posts: 3,412
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I picked up one of these www.airwaterice.com TYPHOON III AQUARIUM REVERSE OSMOSIS DI and I love it. You get a free TDS meter and I also purchased a 10.2 gal reservoir so I would have a large quantity of water immediately. You have to remember that even a 100 gpd unit is only going to trickle water out and one time or another you will turn it on to gather water for a change in a large container and forget that it is on....then guess what happens! You will be replacing carpet flooring...etc. It will happen one time or another. _________ Scott 265g (Peninsula)
3x400w MH's, 4x95w Actinics, AAT Lunar Lights, OM 4-way CL, PM Bullet 3 Skimmer, DelZone Eclipse 1 O3 Generator, WavySea Plus for return, AAT Kalk Reactor, KNOP Ca Reactor w/PM Second Chamber, TradeWinds Chiller, ACIII Controller, Oceanus ATO, PM PO4 Reactor, 75g Sump, 30g Fuge Born March 5, 2007 My 265 Gal. Tank Thread " REAL TIME TANK STATS "   | |
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06-19-2007, 11:54 AM
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#8 (permalink)
| | Corkscrew Tentacle Anemone
Join Date: May 2007 Location: Columbus Indiana
Posts: 740
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Uh, or 10 times if you're like me and constantly forget that you've left the RO unit on. My wife had a wierd look on her face last night when I sprung up from the couch and did the 100 yard dash for the basement...  _________ Kris
180 gallon AGA display re-born on 7-1-08. If I listed all of my equipment my wife would know what I've spent on this thing. Don't want to sign divorce papers.  My 180 Tank Thread | |
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06-19-2007, 12:15 PM
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#9 (permalink)
| | 3reef Moderator
Join Date: Aug 2004 Location: Wethersfield, CT Age: 38
Posts: 6,351
 
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Quote:
Originally Posted by KOgle  Uh, or 10 times if you're like me and constantly forget that you've left the RO unit on. My wife had a wierd look on her face last night when I sprung up from the couch and did the 100 yard dash for the basement... |  I flooded my basement at least twice before I finally caught on and started setting the kitchen timer to remind me to turn the unit off. Now, with everything being automatic, I don't have to worry about it. | |
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06-19-2007, 03:03 PM
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#10 (permalink)
| | Giant Squid
Join Date: Apr 2007 Location: Louisville, GA Age: 45
Posts: 3,309
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no timer or auto shut off= saltwater fish living for a few days in ro/di water..........not too pretty..  | |
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