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RO / DI units

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OnTheReef

Well-known member
Joined
Oct 1, 2003
Messages
72
Location
Santa Cruz, CA
Hello,

Please post 3 things in reply:

1) Make/Model of your RO/DI unit
2) What you like most about it
3) What you like least about it

Thanks!

Eric
 

tamarindthai

Well-known member
Joined
Jul 1, 2003
Messages
3,354
Location
Sammamish, wa USA
Eric
just want to add to your tread,:
when is the time to replace filter 1st can, 2nd can and 3rd can,,any recommendation,,,when it is still producing good water as usual?,,
 

mattseattle

Well-known member
Joined
Jul 15, 2003
Messages
2,694
Location
Seattle, WA
i read that just use a TDS meter and when it stops registering 0 that it's time for a filter change. whether that is the DI filter, the carbon filters or the membrane i am not sure of.

as far as RO / DI units i plan to purchase one this week. i'm going with walter from http://www.airwaterice.com/ and getting the typhoon unit which comes with a free TDS members for reefcentral.com members. i've seen cheaper units on e-bay and such but the service and all that i've received from walter thus far has been great. he's answered all my questions and recommended a unit that will do what i need with the seattle water.
 

aquariumdebacle

electrolyte addict
Joined
Jul 4, 2003
Messages
613
Location
Seattle
Kent Maxima

I purchased a Kent Maxxima from Aquarium World back in '98 for $165(just short of theft!) I then had the pleasure of riding back to the airport(LAX) with the owner of Spectrapure. I was in LALAnd for the MACNAX. I had to tell him the reason that I bought the Kent product was that it was>$100 cheaper. Mine is rated for 24 gallons per day. I get about half that when my particulate and carbon filter get dirty (about six months.) I haven't needed to change the membrane as I don't have heavy usage. To replace all three would cost 3/4 the price of a new unit. I wish that it did have a pressure gauge.
 

Macbeth417

Reef Monkey
Joined
Oct 18, 2003
Messages
563
Location
Seattle, WA
1)Make/Model of your RO/DI unit:
AquaticReefSystems 4stage 75gph RO/DI

2)What you like most about it:
Um, great price matching. Nice, sturdy unit with highend parts. Higher flow than rated. Constant 0 TDS. Great sink adaptor with bypass. Autoshutoff valve to keep membrains wet. Nice float valve for my auto topoff...

3) What you like least about it:
No pressure valve on this model, but I don't care, so I dont dislike anything about it yet.

-Erik
 

OnTheReef

Well-known member
Joined
Oct 1, 2003
Messages
72
Location
Santa Cruz, CA
RO/DI Units

Thanks to all who replied with insights on this purchase, I can now post to my own thread :)

1) Make/Model of RO/DI unit
Air-Water-Ice Typhoon III

2) What I like most about it
Trouble-free install
No assembly required
Excellent value for my dollar
Came with a TDS meter
0 TDS even with my terrible phosphate- and copper-laden water
Rated life of one year on all consumables (dependent on water quality of regular flushing of course)

3) What I like least about it
On unit plumbing done with 1/4" non-rigid tubing, makes connections and reading the pressure gauge a little fiddly. I may replumb the pressure gauge with rigid tubing and add a temperature gauge in the process.
 

jesshimom

I have no fish.
Joined
Oct 9, 2003
Messages
2,323
Location
Lovely Lynnwood
RO Unit

So Matt, How do you like your unit now that you've had it a while and which did you purchase? Thanks for the link, I've been checking one out. SOmeone has such a beast on their Christmas list.

Thanks, Colleen
 

mattseattle

Well-known member
Joined
Jul 15, 2003
Messages
2,694
Location
Seattle, WA
well i found a used Kent Maxima Hi-S RO/DI unit a few weeks ago. So far I love it. 0 TDS with the unit and that is without the DI cartridge running. I only paid 90.00 bucks for it so it was cheaper than a new unit from airwaterice.com.

my coralline algae and all seems to really have taken off since i switched to making my own salt mix and top off water.
 
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