Quote:
Originally Posted by OCDP
There is no SG in tapwater. We take tapwater and mix salt to create saltwater, then test with a refractometer to get the SG.
Unfortunately, there is no answer to your question. You must use tapwater, then condition it with some sort of tap water conditioner, then mix in salt slowly until you reach the desired SG. Most people use an SG of about 1.023 to 1.026. Most commonly 1.025, 1.026.
HTH ..
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I understand how to mix in salt. But the SG of tapwater is not 1.0000. That is why you must use RO/DI water to properly calibrate a refractometer. I believe tap water should register around 1.002 - 1.003. If you have a properly calibrated refractometer can you test it out and let me know what result you get.