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Old 06-08-2004, 02:04 PM   #1
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R/O Waste Water

I am running at a sad 40 PSI (shallow well) and have noticed that if I leave the waste water line open, I get about 10% of the filtered water as compared to the waste. Are you supposed to let the waste water run constantly, or is that what the included (but not attached in the box) valve is for?

Also, I'm getting 105 TDS in and 8 Out, shouldn't it be closer to 1? Will the waste water line being open all of the time help? I don't get much algae at 8 TDS, but I might need a little bit of insight on how to get it running most effectively.

Thanks People...
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Old 06-08-2004, 03:17 PM   #2
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Is the RO new? How long have you been making water? Are you absolutly sure the TDS meter is clean and the cup your measureing the water in is absoutly clean. Even one or two bits of dust will affect the TDS measurement. Your getting basicly 92% filtration out of your RO unit at this point based upon those TDS measurements. Usually a RO unit is closer to 98-99% but I would also not shake a stick at what your getting.

Its best to run the waste as open as you can. Closing down the wasteline will shorten the life of the RO membrane.
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Old 06-08-2004, 05:27 PM   #3
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The waste line should have a restrictor on it from the factory. You don't want to close it off altogether. If you're getting 8 TDS out of the RO membrane, you should be getting 0 out of the DI filter. If you could install a booster pump on the system, I think you would get better performance. You might also be able to crank up the pressure switch on the well pump. I have mine cutting off at about 65 psi and my RO works better at that pressure.
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Old 06-09-2004, 05:50 PM   #4
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I have an inline TDS meter that came with the Barracuda. I am going to install a deep well next summer, so low pressure until then.

Guess I'll just be happy. I have little to no algae problems (compared to massive problems before) and everything is happy. If it ain't broke and all...
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