"That would be 850 uS and 80 uS respectively."

And roughly divide by 2 for TDS

850 = 425 TDS

80 = 40 TDS

You have some hard water but I have seen higher. EPA drinking std are not to exceed 500
TDS (IIRC)
--
Boomer

Want to talk chemistry ? The Reef Chemistry Forum
http://www.reefcentral.com/vbulletin/index.php

Want to See More ?
Please Join Our Growing Membership
www.coralrealm.com

If You See Me Running You Better Catch-Up
"erik" wrote in message
...
: Sorry, my mistake. Too many percosets that night )
: That would be 850 uS and 80 uS respectively.
: I know that's still pretty high so maybe the meter does need
: calibration. It's a Hanna Instruments 98311 EC/TDS & Temperature
: Meter. It's new, right out of the box and probably does need
: calibration. But regardless of the actual values, 80 is roughly 10%
: of 850 which was the point I was trying to make.
:
: Sorry for the confusion,
: Erik
:
: On Mon, 9 Aug 2004 13:16:49 -0700, "CapFusion"
: CapeFussion...@hotmail.., com wrote:
:
:
: "erik" wrote in message
: .. .
: Your argument makes sense. My source of info has not always been as
: right as he would like me to believe.
:
: Has anyone else had experience with this? I did a lot of research at
: the time and didn't find much on the web discussing non-chlorinated
: water and CTA membranes.
:
: Anyway, my TDS readings still look ok. Not great but I though they
: were OK for CTA.
: My new TDS meter is on loan to a friend but the readings I got a
: couple of weeks ago were roughly :
: tap = 850
: RO = 80
:
:
: Humm....
: From tap = 850? I have not seen this high reading before or know anyone
: else. Do you know anyone have TDS meter or can you double check this reading
: with your LFS [if possible]? Could this be a bad TDS meter? It just a guess
: here.
:
: CapFusion,....
:
: