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What’s your tap tds?

Discussion in 'Tank Chemistry' started by flagg37, Jul 4, 2020.

  1. flagg37

    flagg37 Amphipod M.A.S.C Club Member

    I remember checking the tds of my tap water a couple years ago and it was around 200-250 (I have Thornton water). That’s quite a bit better than our last place which was around 450 but at least it was well water and didn’t have any chloramines to filter out unlike here. I just checked it again today and it was 530 (I thought 500 was the legal limit).

    Anyway, I just wanted to see what you guys are at and where you’re located.
     
  2. kchristensen8064

    kchristensen8064 Sardine M.A.S.C Club Member

    I'm in Loveland, and my reading going into my rodi is 45.
     
  3. ianryd

    ianryd Copepod

    Around 100 here in Aurora, goes up to mid 200s from time to time

    Sent from my SM-G950U using MASC mobile app
     
  4. flagg37

    flagg37 Amphipod M.A.S.C Club Member

    What’s up with our water? We must get the run off from all of your waters.
     
  5. SynDen

    SynDen Kraken Staff Member M.A.S.C Club Member M.A.S.C. B.O.D. M.A.S.C President M.A.S.C Webmaster

    Im downtown and mine runs around 225-275. Water here is also high in silica due to the aging water pipes in the city. I run extra Di to handle that
     
  6. larryl

    larryl Copepod

    Have you noticed any change in TDS since the pH change they made in March? My TDS used to run about 170-180 pretty consistently before that, but lately it has been in the 80-90 range. I don't know if it's related to the pH change or is due to something else.
     
  7. SynDen

    SynDen Kraken Staff Member M.A.S.C Club Member M.A.S.C. B.O.D. M.A.S.C President M.A.S.C Webmaster

    No didnt seem to change much for me at all, and I was hoping it would helps some. I think just in my neighborhood we have quite a few very old and aging clay, and lead source lines though, so I suspect most of my tds comes from that since I have seen others in neighborhoods near me that run much lower tds from the tap, and the majority of the water is coming from the same source.
     
  8. jda123

    jda123 Tuna M.A.S.C Club Member

    About 30-35 here in Longmont.
     
  9. TheRealChrisBrown

    TheRealChrisBrown Marlin Staff Member M.A.S.C Club Member M.A.S.C. B.O.D. B.O.D. Member-at-Large

    47 in Loveland
     
  10. flagg37

    flagg37 Amphipod M.A.S.C Club Member

    Man, that’s so low. You could almost skip everything and just use DI.
     
    TheRealChrisBrown likes this.
  11. jda123

    jda123 Tuna M.A.S.C Club Member

    Nobody really wants to hear this, but I had the same success with tap water in Missouri for fill and water changes and then using dehumidifier water for top off. The 1990s were different and I did not really have access to RO, DI or anything of the like until the early 2000s. Nothing really changed. I still use tap water for the initial fill - just let it aerate for a few days to get the chlorine out. All of this said, I know that RODI is better, but we might be arguing over nearly nothing, but why risk it?

    I don't really sweat my TDS until it gets over 5, which is a long time for me here.
     
    TheRealChrisBrown likes this.
  12. larryl

    larryl Copepod

    I got an email back from Denver Water - they said the changes in TDS are most likely due to shifting around the water source from one of three different reservoirs as various maintenance projects are going on.
     
  13. flagg37

    flagg37 Amphipod M.A.S.C Club Member

    Is that your incoming TDS or when you change your DI resin?
     
  14. SynDen

    SynDen Kraken Staff Member M.A.S.C Club Member M.A.S.C. B.O.D. M.A.S.C President M.A.S.C Webmaster

    Interesting. Good to know. Thanks
     
  15. Colored Sticks

    Colored Sticks Copepod M.A.S.C Club Member

    I am also in Thornton. Mine is only coming in at 300, but also had to really step up my RO system to handle it.
     

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