Membrane – watts
5 stage RO/DI
Stage 1- 1 Micron Sediment NSF® certified
Stage 2- Catalytic Carbon for Hydrogen Sulfide and Chloramines Removal 12 x 40 mesh size
Stage 3-0.5 Carbon Block Cartridge for Long Life and High Chlorine Reduction 20,000Gal Capacity NSF® certified
Stage 4- 100 GPD Membrane TFC 96%-99.5% rejection rates max PSI 125
Stage 5- Nuclear Grade Mixed Bed DI Resin Cartridge for Demineralization flow 1GPM

Oh and for a decent pic of the install (My pictures are terrible), have a look at this by Michael of Aqua Digital. He is embarking on a show tank for his home and business.

First peice to come in was his RO-DI unit just like mine. View his thread at RC here.

Related posts:

1. BWI Plumbing SR-1 5 Stage RO-DI unit

The SR-1 units all come plug and play. It took me just over a half an hour to get this hooked up. It was very simple.

1. Remove from box (VERY well packaged by the way): 5 minutes

2. Unwrap media (VERY important): 5 minutes

3. Main unit screwed to the wall above my set-tub in the basement. Make sure to use a level. : 10 minutes

4. Rinse out everything. You may not need to do this but I do it for everything I buy that goes in the tank. Often I use a vinegar/water solution.: 10 minutes

5. Screw in tanks. Comes with a handy tool to assist in this. Makes the job real easy.: 5 mins

6. Hook up water feed, waste drain and processed line: 10 minutes

7. Turn on water.

My output was dead on as expected with the first batch. After tossing out the first 5 gallons (to get rid of the residue from the filters that may have come through) the filters produced about 24 gallons in about 8 hours. that’s 3 gallons per hour or 72 gallons per day. A great first run for a 100 GPD unit. Most units will run short for a while until the membrane gets worked in.

After the test run above I took the advise of a friend and ran my water from the furnace’s humidifier feed line instead of from the sink. This required only that I buy a couple pieces of 1/4″ tube fittings for a T-junction and a on/off valve.

The process of hooking that up only took 10 minutes.

Overall I am very pleased with the product. If I had to make any criticism it would me to include some fittings and screws to hook it up.

I’ll include some pics of my unit and hookup. The image above is from the BWI website.

OH! Go here to view the entire line.

They also sport a good line of PVC fittings, tubes, bulkheads and Check out this bulkhead alternative.

Oh, and Join the Revolution!

Related posts:

1. BWI RO-DI unit- Followup
2. Top Reverse Osmosis RO/DI Water Filter Picks

RO DI unit

In researching RO/DI units I came across this page from About.com.

Say what you want about this site, I have found thier information to be very good and thier writers know what they are writing about.

RO/DI units take your tap water and clean it to be free of any nitrates, phosphates and other baddies before you use the water in your tank.

RO-DI stands for reverse osmosis /deionization and is actually 2 processes. The units come in several models or stages. Some only RO, some only DI but you can get filters that will do both and prices range anywhere from around $100 for a simple RO unit (or this one on sale at Drs. Foster Smith) to several hundred dollars for a unit that will even do your toast in the morning.

Top Reverse Osmosis RO/DI Water Filter Picks for Saltwater Aquariums – Reverse Osmosis RO/DI Water Filter – Reverse Osmosis Water Filter.

Related posts:

1. BWI Plumbing SR-1 5 Stage RO-DI unit
2. Aquarium Dosing
3. Tunze Master DOC Skimmer