ro/di system question.

[bamf25]

My waste water has a TDS of 650ish.

Yeah not drinking that. lol

 

[ryan820]

Bingo. Sometimes with a well you want two sediment filters, one a large one, like 10 micron, and the second a small one, like one micron. That's so they don't clog as fast. You may already (probably) have a whole-house sediment filter anyway. But you have no chlorine or chloramines to deal with. A second DI chamber is useless unless you don't pay attention to your system and TDS, then it kicks in when the first is exhausted.

Air Water Ice, Buckeye Field Supply and The Filter Guys are also sponsors here, you may want to check them as well.

Jeff

Interesting.... so perhaps getting a system with an extra sediment filter but not an extra carbon filter would be worth the money. I know BRS will customize a system. I was considering the 5 stage plus initially and it looks like they have two carbon blocks one at 5 and one at 1.6 micron. I wonder if I would switch out one of the carbon blocks and put a second sediment filter in, if that would be a better set up.

Our water would probably be considered hard, but I can let our steam humidifier run for months before needing to remove the remaining solids. In our apartment (before the house) I had to clean the thing every other day, it was that bad! But the water here at the house seems quite good. We drink it out of the faucet and its quite good (no smells, not tastes, always COLD).

 

[ryan820]

Bingo. Sometimes with a well you want two sediment filters, one a large one, like 10 micron, and the second a small one, like one micron. That's so they don't clog as fast. You may already (probably) have a whole-house sediment filter anyway. But you have no chlorine or chloramines to deal with. A second DI chamber is useless unless you don't pay attention to your system and TDS, then it kicks in when the first is exhausted.

Air Water Ice, Buckeye Field Supply and The Filter Guys are also sponsors here, you may want to check them as well.

Jeff

Jeff would the smaller micron carbon filter be a better choice than the larger one in the case of my well water?

Looks like I can build a double sedi filter system for a reasonable price, but I'd like to make the best choice for the rest of the filters, too.

 

[pfcreed]

is horizontal better the vertical as far as the filters go

 

[Uncle Salty 05]

On most units the micron, carbon and DI cartridges are vertical and the RO membrane is horizontal.
The unit is pressurized so you could probably turn it upside down and it would still function.

 

[Orcrone]

I just purchased my first RO/DI unit (from BRS) and trying to understand something. I'll assume my waste to filtered water ratio is 4:1. Additionally the TDS of my filtered water is 0. Therefore the TDS of my filtered water will be expelled with the waste water. Since all the TDS of the filtered water is expelled with the waste water wouldn't that just bring the TDS of the waste water up by 25%? I don't want to be the guinea pig, but would that really make it unsafe to drink?

 

[bamf25]

I just purchased my first RO/DI unit (from BRS) and trying to understand something. I'll assume my waste to filtered water ratio is 4:1. Additionally the TDS of my filtered water is 0. Therefore the TDS of my filtered water will be expelled with the waste water. Since all the TDS of the filtered water is expelled with the waste water wouldn't that just bring the TDS of the waste water up by 25%? I don't want to be the guinea pig, but would that really make it unsafe to drink?

It depends on what the quality of your initial water is tbh. Like a previous poster said there post tds is 650, that is high, if your post is like 100 many people have this as what comes out of the tap and we drink, that is likely ok.

I found this article about tds for people. A little helpful..

http://www.who.int/water_sanitation_health/dwq/chemicals/tds.pdf