BRStv Investigates: Challenging PSI for proper RO/DI performance

October 7th, 2016
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Today on BRStv, we have new episode of BRStv Investigates. In this series we explore popular reefing theories, products, methods, and what the manuals are missing, with a focus on putting them to the test!

This week we are going to examine the general advice that you need 50 PSI for an RO/DI system to operate properly. We will take a look at where this information come from and put it to test, what happens if you go under or over that from two angles, rejection and resulting TDS in the product water, as well as water production or how fast water is produced. I think we are going to uncover something interesting.

We are going to test the RO/DI system we have hooked up to the BRS160. For this test we removed anything that has any potential to impact results and running strait RO without an auto shut off valve which at high enough flow rates could potentially impact product water production flow rates.

To control the pressure I am using a Watts pressure reducing valve and Aquatec booster pump to get us into the higher ranges. We used all brand new filters with a GE rosave.z depth sentiment filter, BRS universal carbon blocks and 75 GPD DOW membrane.

So follow along as we test out and answer today's question, provide some helpful insight, and help make reefing just bit more fun and easy for you and your tank.

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