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Post by spotfin on Jan 24, 2013 21:46:11 GMT -5
Thinking about a ro/di unit for my salt tank. Any recommendations? I'm on a well and the pressure doesn't go above 50 psi, and that is with the tank full. I see some units have a built in pump now. Also, my tank is 30 gals so I really don't need a unit that makes 100 gpd.
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Post by ryansweatt2004 on Jan 24, 2013 21:55:02 GMT -5
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Post by ryansweatt2004 on Jan 24, 2013 21:55:59 GMT -5
You can always build your own out of universal parts and save money. I could even help if need be.
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Post by gotareef on Jan 25, 2013 9:45:49 GMT -5
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Post by spotfin on Jan 25, 2013 19:04:43 GMT -5
Thanks. What do you guys do for water pressure? Our well tank only goes to 50 psi. And do you run off of the cold water line?
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Post by industry on Jan 25, 2013 21:04:38 GMT -5
You're welcome to check my setup. I'm just across the river. I got mine from BRS. I have a well too, same pressure situation.
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Post by spotfin on Jan 25, 2013 21:45:07 GMT -5
I'll take you up on the offer. I work in Hallowell so drive through Farmingdale. Perhaps some day after work next week?
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Post by lesserof2weevils on Jan 26, 2013 8:13:12 GMT -5
I really like the BRS units. I have a dug well and 50 psi as well and run the ro/di pump. I would definitely recommend the by-pass / flush valve. It will rush water past the outside of the ro membrane and flush much of the trapped contaminants to the drain and the membrane will last much longer. I typically flush for a few minutes every time prior to making water. The difference I see in the higher capacity units is just that they will make more water in a given amount of time. I ended up getting a 75gpd unit and then a year or so later I piggy-backed another 75gpd membrane to the first one. Since then I can make water in a steady stream instead of a drip, drip, drip and make 20g in 6 or 7 hours instead of 2 days.
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Post by industry on Jan 26, 2013 21:56:20 GMT -5
Sounds fine spotfin. PM inbound.
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Post by gotareef on Jan 26, 2013 22:57:06 GMT -5
I have 35-40 psi so I got the pressure tank it pushes water threw the ro membrane at 65+ psi
or you can spend the $120 on a booster pump a permate pump will help as well
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Post by scoobnoob on Jan 27, 2013 6:41:18 GMT -5
I got one of the refurbed spectrapure units, it's great I get 60psi on the gauge for $125 you can't beat it.
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Post by gotareef on Jan 27, 2013 10:36:17 GMT -5
the psi is your water pressure from your house, if you have low water pressure get a unit with a pressure tank or booster pump
a dribble of water will fill the pressure tank and the tank will push the water threw the ro membrane at the correct pressure for it to work correctly
if you ask me most ro/di units are about the same price. so the more filters on the unit the better
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bampy
New Member
Posts: 68
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Post by bampy on Jan 27, 2013 11:26:59 GMT -5
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Post by gotareef on Jan 27, 2013 13:31:27 GMT -5
the problem I see with this unit is it still needs a di chamber, good for drinking but not for the reef tank,and without clear filter housings you cant see how dirty your filters are getting.
for the sale price of $370 + shipping and + adding a di chamber............
add a booster pump to a max 125gpd ro unit it will cost you about $225
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Post by maineultraclassic on Jan 27, 2013 16:20:06 GMT -5
I got rid of my RO/DI unit last year, and haven't seen any bad results in my tank from it.
I was tired of throwing away 4-5 gallons of water for each gallon I made, it was a total PITA to make water.
I'm on a well and I only have 40-50psi of pressure, so there is a lot of waste.
If your water is OK as it is, don't waste your money on the RO/DI system.
Steve
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