Specific Gravity of RO/DI water?

drkphx

Member
Is the SG of RO/DI water 1.000.
I'm asking because I have an Aquarium Systems SeaTest Specific Gravity meter and it reads RO/DI water below 1.000.
 

broomer5

Active Member
Yes you are correct.
RO/DI should have a S.G. of 1.00
What temperature is your RO/DI water sample by the way - just curious.
You may want to consider looking into getting a new hydrometer, or have it tested against a better known source.
These types of hydrometers are not the most precise devices in the world, but they work fine for most people.
Here's MORE than you ever wanted to know about these units
<a href="http://www.epinions.com/content_44790222468" target="_blank">http://www.epinions.com/content_44790222468</a>
Later ;)
 
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