RODI unit

[artur72]

I have my reef tank for 7 years. I always use DI unit made by one of my LFS stores. Now I decided to buy RODI unit, but there is so many of them. What brand you guys use and what you recommend? 3,4 filters. So confused. Please help me to decide. Thanks!!!!

[mikecc67548]

I got mine from a reef central supporter, there is a link at the top of the page for sponsors. I went with BRS 6 stage for like 250 bucks or so...... screwed it to the wall by the washing machine and was using it in pretty short order. I've not yet had to purchase new filters and change them yet, so my experience is limited.

[ccolt1]

I bought mine off of ebay from a store that sells them..sorry... for 108.00 shipped new. It is a 50 gpd 5 stage and I have made alot of water so far with 0 TDS.

[makdaddy386]

Bulk Reef Supply makes several packages that are very reasonably priced

[Banjo]

Spectrapure, BRS, etc.

[reefmanmatt]

the amount of stages and what you run in them is directly depending on how good your water is from the tap. some people need none, some only need 3 , some NEED 6 . theres a ton of useful info at the bottom of the home page on the ro/di link . i would start there before trying to pick what we "think" is right for your specific area's water quality .

[Buckeye Hydro]

Originally Posted by reefmanmatt

the amount of stages and what you run in them is directly depending on how good your water is from the tap. some people need none, some only need 3 , some NEED 6 . theres a ton of useful info at the bottom of the home page on the ro/di link . i would start there before trying to pick what we "think" is right for your specific area's water quality .

There is a common misunderstanding that more stages = a better filter. Not so.

In interests of not wasting money on the initial purchase of a system, and thereafter on filter replacement, a 4 stage system is the default.

Sediment filter->Carbon block->RO->DI.

Only add additional stages if you are trying to treat a specific water quality issue such as high sediment loads, chloramines, etc.

Here are some things to look for in an RODI system for this hobby:

Standard-sized prefilters, membrane, and DI cartridge
Brand name, high-rejection membrane
Specifications provided for each filter/stage
Pressure gauge after the prefilters and before the membrane
Thermometer
TDS meter
DI bypass
Vertical DI stage
Refillable DI cartridge
Aluminum bracket
Quick connect fittings
No water from pressurized storage container delivered to DI
Membrane flush valve
Clear housings
High-quality instructions written in clear English
Customer support before, during, and after your purchase
A vendor involved in your hobby

Russ