-
Folks, if you've recently upgraded or renewed your annual club membership but it's still not active, please reach out to the BOD or a moderator. The PayPal system has a slight bug which it doesn't allow it to activate the account on it's own.
TDS Level
- Thread starter Dave
- Start date
Dave That reading sounds fine, but it is what the RO and DI do with it that really matters with your corals. That is city water where you are right?
Anyway here are a few numbers of members in different towns for comparison. It is an old thread I just brought back to life http://www.njreefers.org/joomla/index.php?option=com_smf&Itemid=26&topic=2784.0
Taz
Anyway here are a few numbers of members in different towns for comparison. It is an old thread I just brought back to life http://www.njreefers.org/joomla/index.php?option=com_smf&Itemid=26&topic=2784.0
Taz
As far as TDS goes, 120 isn’t bad…but that comes with a caveat….TDS only tells you that there is stuff in your water. It doesn’t tell you what that stuff is. So stating that 120 is good or bad really can’t be stated because we don’t know what that mystery stuff is…especially when it comes to using that water in a saltwater tank. And actually, with the simply meters we use, it actually tells you that the water is conducting electricity (presence of ions in the water). This stuff is most likely calcium, magnesium, potassium, sodium, bicarbonates, chlorides and sulfates (and maybe some other things I can’t think of right now…oh ions from the pipes it passes through…iron, copper, lead?). The point I’m making is that TDS meters are qualitative measuring devices that actually tell us the conductivity of the water.
However, with that said, the EPA (Environmental Protection Agency), the Overlord or water quality standards in the USA, actually has not set a TDS standard for drinking water. However, they have stated that a TDS of 500mg/l or more produces odor, taste, staining and other problems with the water. On that note, 120 isn’t that bad. I’ve tested water that has been in the upper three hundreds. Ours (in Sayreville) is typically in the two hundreds.
An RO/DI unit will have no problem dropping that number down to zero, or very close to it.
However, with that said, the EPA (Environmental Protection Agency), the Overlord or water quality standards in the USA, actually has not set a TDS standard for drinking water. However, they have stated that a TDS of 500mg/l or more produces odor, taste, staining and other problems with the water. On that note, 120 isn’t that bad. I’ve tested water that has been in the upper three hundreds. Ours (in Sayreville) is typically in the two hundreds.
An RO/DI unit will have no problem dropping that number down to zero, or very close to it.