Std

[Kgedelian]

Hi What is the normal TDS rate for makeing saltwater ? (Reef & Fish)

 

[redfishbluefish]

Hi What is the normal TDS rate for makeing saltwater ? (Reef & Fish)

I’m not sure of what you are asking???

What is the normal TDS on an RO unit?
What is the normal rate of making RO water?

However, either of those questions are answered with, it’s dependent on the membrane you are using (and secondarily the temperature of the water and water pressure.).

I can tell you that on the 75 gpd membrane I have, the ejection is 98%. That is, the incoming TDS reading is reduced by 98% after passing through the membrane.

With that membrane, I get approximately 1 gallon of good water for approximately 3 gallons of waste.

Although rated at 75 gpd, it takes me about 100 minutes to make 5 gallons of good water, which calculates out to 72 gpd. Again, water temperature and pressure have an impact on these numbers.

 

[Reefing Madness]

You want 0 TDS water for mixing.

 

[Kgedelian]

Thank you