check valves

Discussion in 'Refugium' started by card shark, Sep 21, 2008.

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  1. card shark

    card shark Flamingo Tongue

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    i am about to start building my sump tank and i was just wondering if there was a to put check valves in so i dont have an over flow problem.i am sure hardwood florrs dont like saltwater.Thanks
     
    card shark, Sep 21, 2008
    card shark, Sep 21, 2008
    #1

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  2. missionsix

    missionsix Super Moderator Staff Member

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    One thing you can do is, be sure that there is enough room leftover in your sump to accomodate a reverse siphon. A check valve on the return is a good idea but, mine slooowwwwllyyyy siphons anyway. The depth of your return will also determine how much water will be siphoned. The lower under the water surface, the more will drain into your sump. I recom mend shutting down power to see how everything will un-fold and make adjustments as necessary.
     
    missionsix, Sep 21, 2008
    missionsix, Sep 21, 2008
    #2
  3. missionsix

    missionsix Super Moderator Staff Member

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    I forgot to add "yes" you should have a check valve.
     
    missionsix, Sep 21, 2008
    missionsix, Sep 21, 2008
    #3
  4. lunatik_69

    lunatik_69 Giant Squid

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    I've seen check valves installed in many systems and many of them go bad after a short time. I've never had one simply b/c I've never seen the need for one. I have a min and max water level line in my sump, so I know at what point I need to stop adding top off water to avoid a small swimming pool in my living room. I feel the same way about ATO systems. You can see the levels in these pics. Luna

    [​IMG]

    [​IMG]
     
    lunatik_69, Sep 21, 2008
    lunatik_69, Sep 21, 2008
    #4
  5. inwall75

    inwall75 Giant Squid

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    I didn't use them personally, I always just made sure my sump would never overflow. (I used them at the shop though because on some of the systems the sumps weren't big enough for the additional water).

    However, if you decide you want one it's important to have a union above (and maybe below too depending on the application). You want them to be easy to remove so they can be soaked at least an hour in vinegar a month.
     
    inwall75, Sep 21, 2008
    inwall75, Sep 21, 2008
    #5