Ro/di buying advice

L

Llawen

I am starting to look into buying a ro/di 6 stage filter. Tired of buying water. I have never bought on, and would like to know what look for in getting a good one. And what brand is best. How many gallons a day. I use about 20 gallons a week, on a 110 gallon reef. I am leaning toward not going with a cheap one since my tank is at stake here. Any advice is appreciated. If someone has one for sale let me know.
 
I have one from melevsreef.com. It is only a 5 stage i believe but I've had it for over a year and am completely satisfied.

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I use a melves reef 100gpd and I am really happy with it. My tds is about 130-140ppm which is pretty clean for tap. But I have used this filter for a year with same filters still 0 tds.

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Here is what you need to know. I wrote this for the club's newsletter years ago: http://www.melevsreef.com/why_rodi.html

A 100gpd system would be perfect for your sized system.
 
I think there is a ro/di going to be raffles off at this sat dfwmas social
 
@kuyatwo wrote:
I think there is a ro/di going to be raffles off at this sat dfwmas social said:
yep yep! a melev 100 gpd one...i have a melev one too and its great
Click to expand...
 
Air water and ice has some nice ones, I did a review on their smaller unit. Worked better than advertised.
 
I own the filter guys ro/di unit and very happy with it. I heard bulk reef supply is a good ro/di unit also
 
I have a BRS 5 stage unit and I have been satisfied with it since I got it. I may fork over the extra cash for their 150gpd upgrade with a possible tank upgrade in the near future.
 
All the regular RO units sold today are "generic" in a sense. Unless you go with some exotic unit they all take the same size filters. There are different brands of media but I haven't noticed a difference really between what is sold by the varioius online sites. How they justify the different costs are the gallons produced (different RO membranes) the extra add-ons such as in-line tds meters. So in your case, you need to figure out how you are going to hook up the unit and how many gallons per day you need plus what "extras" you want. Check your water pressure also. If your pressure is too low you may need a pump that will increase the water pressure.

Sounds like you know the gpd you want so you need to know how you plan to hook it up. Are you just going to attached it to your faucet and take it off when done? That requires a kit that has the adapter for your sink. Do you want something permanent? I originally tapped into the cold water line going to my hot water tank. When the tank had to be replaced I bought an adapter to hook it up to the water line for my washing machine. You also have to think about how you plan to store your water. In my case I just have some 5 gallon jugs and I fill them up which takes about 1 1/2 hours each. I used to have it setup to a 25gal rubbermaid trash can with a float switch to shut it off once full. If you got the float switch route you will need a kit. If you go the route of just filling jugs it is a good idea to buy a water alarm. You can get them at home depot for around $10 to $15. They have a sensor that sits on the floor and if it gets wet it will sound an alarm. I can't tell you how many times I've started a jug of water and forgot about it.

Personally I'm still using my Kent Marine RO unit I bought around 20 years ago that cost over $200 and was only 3 stages and made 20gpd. I've added a second filter and a DI filter plus I upgraded to a 75gpd RO membrane several years ago.
 
Couple things to look at is how fast you want your water made and how much water pressure you have.

If you want you want your water made fast then 150 gpd is what you want. In my opinion 75 gpd is to slow when I want water I need it fast not hours from now.

Second if you are in a low pressure area you might need a system that has a booster pump
 
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