(206) 949-5683, Top Rated Plumber, Seattle
Results 1 to 15 of 19

Thread: Acid neutralizer question

Hybrid View

  1. #1
    DIY Senior Member Bob999's Avatar
    Join Date
    Jul 2009
    Location
    Pennsylvania
    Posts
    448

    Default Acid neutralizer question

    I have a backwashing acid neutralizer with a 12 x 48 tank.

    My question is how much Calcite media should be maintained in the tank?

  2. #2
    That's all folks! Gary Slusser's Avatar
    Join Date
    Aug 2004
    Location
    Wherever I park the motorhome.
    Posts
    6,790

    Default

    You should add mineral when the treated water pH starts going below 7.0 at high flow rates.
    Gary Slusser Retired (= out of business)
    Click Here to learn how to correctly size or program a water softener.
    CAUTION, as of Nov 12 2013 all YouTube videos showing how to rebuild a Clack valve have an error in them that can cause damage.

  3. #3
    DIY Senior Member Bob999's Avatar
    Join Date
    Jul 2009
    Location
    Pennsylvania
    Posts
    448

    Default

    Quote Originally Posted by Andy CWS View Post
    A 12 x 48 inch tank will have 2 cuft (or about 200 lbs) of calcite in it. It will have about 20 pounds of gravel at the base.

    The tank should be about 2/3 full or a minimum of 24" bed depth. Is it mixed with corosex or just calcite. What is your raw pH?

    Andy Christensen
    The media is Calcite, no corosex. The raw pH is 6.5.
    Last edited by Bob999; 07-24-2009 at 06:00 AM.

  4. #4
    DIY Senior Member Bob999's Avatar
    Join Date
    Jul 2009
    Location
    Pennsylvania
    Posts
    448

    Default

    Quote Originally Posted by Andy CWS View Post
    Yew, the Calcite alone would work fine. I suppose your pH raises to around 7.3-.4? Can you desribe your water usage. # of people, baths, plumbing diameter before and after the filter. Have you tested for hardness before and after?

    Andy
    I suppose your pH raises to around 7.3-.4? --It depends on flow rate. At high flow rates it will drop to 7.2 or less while at low flow rates it will be 7.8-8.0,
    2 people in home, 4.5 baths, 1" plumbing in to AN filter and out to softener. Welll produces 30 gpm and pump produces 25 gpm. Hardness goes from about 5 gpg raw to 7-8 gpg after AN filter.

    pH characteristic of water is that it measures acidic immediately after being drawn but if allowed to sit for a day the pH will rise to above 7--perhaps as high as 7.5.
    Last edited by Bob999; 07-25-2009 at 11:10 AM.

  5. #5
    Radon Contractor and Water Treatment 99k's Avatar
    Join Date
    Aug 2008
    Location
    Fairfield Co.,Connecticut
    Posts
    460

    Default

    The minimum will be up for debate, however, the maximum level of calcite should provide a clearance of 18" or greater from the control head.

  6. #6
    That's all folks! Gary Slusser's Avatar
    Join Date
    Aug 2004
    Location
    Wherever I park the motorhome.
    Posts
    6,790

    Default

    I've never seen 'calcite' alone raise pH to more than 7.3 or so.

    I still say the time to add more mineral is when the max peak demand flow rate shows a pH of 7.0 or less.

    99K, you say that is debatable, when would you suggest Bob999 adds mineral?
    Gary Slusser Retired (= out of business)
    Click Here to learn how to correctly size or program a water softener.
    CAUTION, as of Nov 12 2013 all YouTube videos showing how to rebuild a Clack valve have an error in them that can cause damage.

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •