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bigbris1

Re-reefer
Location
Manhattan
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After reading stories about tap water and my recurring algae issues & lack of corraline growth, I have decided to invest in an RO/DI unit. My main question is what should I look for in a unit? I've seen them on ebay from $35 & up. Foster & Smith has one for about $150.

How often do filters need replacing? How long do the membranes last? What do I have to look for under my kitchen sink to know which connector I need?

MOST IMPORTANTLY, please describe in detail the difference you have experienced after switching to RO/DI.

Your help is greatly appreciated!

Bristol
 

yessongs

Senior Member
Location
Brooklyn
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bigbris1 said:
I noticed one of the units include a pressurize tank. What is it for?

RO/DI water is very slow it fills up the pressurize tank in a hour +- with the faucet you can get water through the tank much faster.
I use the tank and faucet to make RO water for drinking, cooking, ice.
Then i shut off the valve on the tank and turn on a ball valve i bought at HD with a hose, i fill up buckets of RO/DI water for the reef tank.

DSCN4216.jpg


DSCN4220.jpg
 

yessongs

Senior Member
Location
Brooklyn
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bigbris1 said:
Still confused but thanks for the info :)
It takes a long time to make RO/DI water. it drips out, so it fills up the pressurize tank that connects to a faucet (you drill into your sink) supplied with the RO/DI unit for drinking water.
If your still confused, you can buy key food distilled water for 99? a gallon :splitspin
 

bigbris1

Re-reefer
Location
Manhattan
Rating - 100%
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yessongs said:
It takes a long time to make RO/DI water. it drips out, so it fills up the pressurize tank that connects to a faucet (you drill into your sink) supplied with the RO/DI unit for drinking water.
If your still confused, you can buy key food distilled water for 99? a gallon :splitspin

Got it. So I don't neccessarily need the pressure tank.
 

jejton

Senior Member
Location
Suffolk
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yessongs said:
It takes a long time to make RO/DI water. it drips out, so it fills up the pressurize tank that connects to a faucet (you drill into your sink) supplied with the RO/DI unit for drinking water.
If your still confused, you can buy key food distilled water for 99? a gallon :splitspin

I am also confused...Its your grammer ( no offense ) that is giving me a hard time understanding your replies.
 

scarf_ace1981

Advanced Reefer
Location
San Juan, PR
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i forgot to show you my ro unit it's the same one pictured(aqua safe). if you need any help in the future let me know. the tank isn't needed i think it holds 4g max or something like that and that is not useful for those of use who have multiple tanks and/or large tanks.
 

bigbris1

Re-reefer
Location
Manhattan
Rating - 100%
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Thanks Charlie, I'll see you tomorrow.

Jon, maybwe I can take a look at it when I come by for those mushrooms :)

One of the things I found out about the pressure tank is that it can be used & connected to a seperate faucet for on-tap drinking water, if that helps clarify things.

One of my original questions went unanswered: Is there anything in particular I should look for in a unit? I have seen less enxpensive ones on ebay. Stages? Filter life? Replacement part cost?
 

yessongs

Senior Member
Location
Brooklyn
Rating - 100%
9   0   0
RO/DI units have 5-6 filters, this slows down the tap water as it travels through the filters.
The majority of RO RO/DI units are sold for drinking water, thats what the tank is for.

Pic of RO/DI water without the use of the pressurized tank.
DSCN5346.jpg


Pic of RO water using the pressurized tank, its a lot more flow.
DSCN5340.jpg


I don't like the taste of RO/DI water, so i hooked the unit up so only RO and carbon fill the tank, then i can shut the valve on the tank and open another valve that i added and fill buckets of RO/DI water (no carbon i run carbon in my tank) for my reef tank.

There is a 4-1 +- waste using these units, some people collect the wast and water there plants, wash there car, some have it connected to there washing machine.
I while back i read about a unit with 0 waste, it was expensive!

One of the RO/DI links i posted is good for reefs, you can use a auto top off
switch in your sump, and it will automatically fill water lost to evaporation
then shut off.

Also once a year aqua-safe has a midnight special sale, you can buy the aquarium unit for $60
 

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