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RODI faucet adapter


sean151

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I'm in the market for an rodi system, but am in an apartment. Our bathroom sinks don't have access to their threads, but the kitchen sink does. I'm avoiding the laundry lines as they are rather difficult to get to and not much room to tighten a T fitting on there. And under the sink I plan to do down the road, but not in the cards at this moment. I know I have a male threaded kitchen sink and I was wondering if this would fit on it: http://www.bulkreefsupply.com/mur-lok-garden-hose-utility-sink-adapter.html. I plan on ordering this system: http://spectrapure.com/RO-RODI/RODI-SYSTEMS/CSPDI-Standard-90-GPD-RO-DI-System

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Or if your option is the sink you may have a water tube for the fridge. If you have those you can "T" the line. Parts for that type of tubing are found at Home Depot or Lowe's in the plumbing section. I have an RO/DI from brs and that is what I did. Waste hose is attached to my drain.

Frank.

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Or if your option is the sink you may have a water tube for the fridge. If you have those you can "T" the line. Parts for that type of tubing are found at Home Depot or Lowe's in the plumbing section. I have an RO/DI from brs and that is what I did. Waste hose is attached to my drain.

Frank.

Our refrigerator does not have a tube going to it as it doesn't have an automatic ice maker or dispense water. I'm going to go with CrazyEyes solution after more research it looks like the best bet.

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And under the sink I plan to do down the road, but not in the cards at this moment.

Why not? You can hook it up just past the cold water shutoff valve: http://www.bulkreefsupply.com/john-guest-angle-stop-valve.html

 

I'm going to go with CrazyEyes solution after more research it looks like the best bet.

You can get one here: http://www.bulkreefsupply.com/chrome-faucet-diverter-valve.html

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That's the one I ended up going with. I didn't go with an underneath the sink setup initially as I only plan to be in this apartment for a year and a half longer and don't feel like investing the effort to work on the line, maybe down the road if I get tired of dealing with the faucet. When I finally go for a house, then I plan to have a T setup with the washing machine or utility sink line if there is one. If I end up requiring a booster pump I'll flip a few desks, get over it, and figure something out.
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I'm running a BRS RO/DI unit with the faucet adapter/diverter in my laundry room without a problem. I did add a booster pump, mainly because my pressure was a little low.

http://www.bulkreefsupply.com/chrome-faucet-diverter-valve.html

That's the one I ordered and am currently using.

 

 

I've been running it for an hour now with no real hiccups. It's at 60-62psi constantly (at RO) with at temp around 75*F. But I'm getting a ratio of 932ml waste : 366ml product for a ~136gpd. I know that something is not right so I come to you guys for advice on what I should do to remedy this issue. Oh tap is 63ppm.

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AZDesertRat

Your waste ratio is 2.6:1 which is a little light but given your low TDS may be fine. The biggest determining factor is your tap water hardness, I would assume with TDS that low your water is pretty soft so you are probably good right where you are at.

A 75 GPD membrane at 62 psi and 75 degrees F water temperature ( that seems very warm to me for Washington?) and 63 TDS will produce 92 GPD on average. Mebranes can produce more or less since not all are exactly the same. I would be more concerned about how the rejection rate or removal efficiency is doing versus the GPD. What is your RO only TDS and your final RO/DI TDS?

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Your waste ratio is 2.6:1 which is a little light but given your low TDS may be fine. The biggest determining factor is your tap water hardness, I would assume with TDS that low your water is pretty soft so you are probably good right where you are at.

A 75 GPD membrane at 62 psi and 75 degrees F water temperature ( that seems very warm to me for Washington?) and 63 TDS will produce 92 GPD on average. Mebranes can produce more or less since not all are exactly the same. I would be more concerned about how the rejection rate or removal efficiency is doing versus the GPD. What is your RO only TDS and your final RO/DI TDS?

 

I'm right down the road from Sean151 and my TDS is 45 in and my water temp currently is 71. Tested the temp with my Apex temp probe. It is VERY warm right now. We have had high 80s to low 90s all summer. My wife and I were complaining that the tap water is too warm to drink the last month+ haha.

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The 75* might be slightly off, I was using a different faucet and didn't run it that long. But I'm on the third floor of an apartment and it's been the warmest summer ever in WA. 1-2 tds out the RO and 0 in the DI side. My membrane is rated for 90gpd. I was quite worried at first by the better than 3:1 ratio when I first did the math and the high product rate.

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AZDesertRat

I think you are in good shape. Make sure you are using only cold water and not trying to temper or blend hot and cold. Cold water actually treats better and will give you lower TDS than warmer water. In the winter months as your water cools down, the production rate or GPD will go down, the waste ratio will go up and the TDS will also go down slightly. DI will last longer as a result.

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I actually went as far as turning off the hot water under the sink as I've seen your posts for the last couple years always saying cold water is better for the system. Thanks for all the help everyone. Seems like the system has been a great success and I no longer have to worry if I can find distilled at the local grocery store or not and if it's actually 0 tds, tested it now though and it is 0.

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The booster pump puts me around 90psi and my TDS is pretty low out of the tap (forget the actual #). I make 18 gallons of ro/di and fill a brute 32g trash can about 2/3 full (which is reclaimed for my house plants and outdoor potted plants), I haven't done the math yet to figure out my ratio, but it's a lot better with the booster pump. I just replaced the filters and di resin, so I got about 6 months use out of the previous filters/resin. I probably could've continued using the old filters, but I would rather spend $30 on new filters/resin, then take a chance adding sketchy water.

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AZDesertRat

If you are making 18 gallons of RO/DI and only filling a 32G Brute 2/3 full with the waste your waste ratio is way too low. You will foul or plug your membrane very quickly.

Run your system and measure the treated and waste for exactly one minute using a measuring cup or graduated container.

If you are in So Cal your TDS is probably pretty high and your water is hard if it comes from Metropolitan Water District. Check the TDS, hardness and waste ratio very soon to save yourself some money on membrane replacements. You will probably want at least a 3:1 waste ratio and very possibly 4:1 if your water is like ours here in AZ which also comes from the Colorado River.

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