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  1. #1
    Join Date
    Jul 2006
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    151

    Couple questions

    1. Would it hurt anything to have the condensate drain line empty into the washing machine drain that empties into the septic system? I didn’t know if the acidic nature of the condensation would have any negative effect on the septic system? The condensate drain currently exits through the basement wall, but come winter I am concerned about it possibly freezing up. (92+ furnace)

    2. The line set and condensate drain line exit the basement through a PVC pipe in the cinderblock wall. They used plenty of silicone between the PVC and cinderblock, but where the line set goes through the PVC it is not sealed. Is this left unsealed for a reason? Would it hurt anything if I put a little spray foam insulation in there? Should I just leave it as is?

    Thanks for the help.

  2. #2
    Join Date
    Dec 2006
    Location
    Middle Tennessee
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    Quote Originally Posted by acobra289 View Post
    1. Would it hurt anything to have the condensate drain line empty into the washing machine drain that empties into the septic system?
    its not a good idea to connect any part of your HVAC system to any part of a sewage system!



    .

  3. #3
    Join Date
    Jan 2004
    Location
    Lancaster PA
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    68,112
    You would need a PH neutralizer added to your condensate system.
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    How many times must one fix something before it is fixed?

  4. #4
    Join Date
    Dec 2006
    Location
    Middle Tennessee
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    double post

  5. #5
    Join Date
    Dec 2006
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    Quote Originally Posted by beenthere View Post
    You would need a PH neutralizer added to your condensate system.

    the (CL) bleach from the washing machine should neutralize the (PH) acid



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  6. #6
    Join Date
    Jul 2006
    Posts
    151
    I'll be safe and leave it as is. I don't want to screw up my septic system. They are even more expensive than HVAC equipment.

  7. #7
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    Jan 2004
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    Lancaster PA
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    So what prevents the drain from freezing in the winter?
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  8. #8
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    Quote Originally Posted by beenthere View Post
    So what prevents the drain from freezing in the winter?

    make sure to run it totally downhill once its outside

    or use pipe heat tape



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  9. #9
    Join Date
    Jun 2006
    Posts
    294
    Why don't you leave it alone and don't worry about freezing a condensate line you describe. So what if some residual water freezes in the winter; it shouldn't cause any problem unless you have some nasty turns and the line is copper.
    When you need A/C in the summer I guarantee it will be defrosted.

  10. #10
    Join Date
    Jan 2004
    Location
    Lancaster PA
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    Its also for his Condensing Furnace.
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  11. #11
    Join Date
    Feb 2007
    Posts
    999
    Quote Originally Posted by beenthere View Post
    You would need a PH neutralizer added to your condensate system.
    The condensate from my (new) system (heat and cool) is pumped from the basement, to a washtub in my first floor laundry room.

    It is permitted by code since (1) there is an air break, and (2) the waste system is all PVC.

    I plan to make a cannister, to be filled with marble chips (close to 100% Calcium Carbonate) through which the furnace condensate will drain (out of the bottom) and neutralize the acid.

    AM

  12. #12
    Join Date
    Jun 2006
    Posts
    294
    Oh, I didn't notice.
    But with flow of condensate in winter no way could it freeze up anyway since it takes a lot of time to lose enough heat for freezing.

  13. #13
    Join Date
    Jun 2006
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    294
    Quote Originally Posted by ampulman View Post
    The condensate from my (new) system (heat and cool) is pumped from the basement, to a washtub in my first floor laundry room.

    It is permitted by code since (1) there is an air break, and (2) the waste system is all PVC.

    I plan to make a cannister, to be filled with marble chips (close to 100% Calcium Carbonate) through which the furnace condensate will drain (out of the bottom) and neutralize the acid.

    AM
    Wow, What overkill for a simple problem unless you cant dump it outside.

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