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Plumbing questions

Discussion in 'General Discussion' started by Kylie, Dec 7, 2010.

  1. Kylie

    Kylie Inactive User

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    Well i have a single 1" drain now and i have to cut back the flow
     
  2. Kylie

    Kylie Inactive User

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    Interesting development, I was comparing my new bulkheads to that of my center 'drain' on my 40 and realized, these aren't the same size. At some point, I completely forgot that my center drain hole was 1.5", not 1". Now, that doesn't really matter for my 40, but for the 65, are two 1" drains still sufficient? Adam seemed pretty confident but thats when I told him that I had a 1" drain now. Not sure if that would change anything.

    Certainly makes me realize how my PVC will be lighter /DesktopModules/ActiveForums/themes/_default//emoticons/smile.gif
     
  3. Kylie

    Kylie Inactive User

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    New question! /DesktopModules/ActiveForums/themes/_default//emoticons/smile.gif RC calculator says a 1" drain will get about 600gph. The mag 7 is suppose to get 700 gph. I have a strong feeling the guards I use on my drains must be cutting this down a lot seeing as my mag 7 has to be cut back with the valve otherwise it overflows my main tank. Soo... with that in mind, I will eventually have 2 1" drains. If anyone has any other drain guard suggestions so fish don't get sent to my sump, I would love to hear them. Otherwise, when I have two 1" drain pipes coming together, at most, that would be a theoretical 1200gph going through the uniting pipe into my sump. RC says that 1200gph flow needs a 1.43" pipe diameter. Should I use couplings and increase my pipe lengths to 1.5" where they join up and enter my sump? Or should I go smaller than that?

    Sorry if none of that makes sense.. /DesktopModules/ActiveForums/themes/_default//emoticons/smile.gif
     
  4. saltwaternewbee

    saltwaternewbee Inactive User

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    Just my 2 cents...I was talking to a plumber today about this and was told to use a minum of 1.5" pipe to join but that a 2" would be best. That way you know you have a little room to play if needed.
     
  5. Kylie

    Kylie Inactive User

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    That works. Thanks for the tip /DesktopModules/ActiveForums/themes/_default//emoticons/smile.gif
     
  6. Gered

    Gered Experienced Reefkeeper

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    If you have two 1" pipes that flow 600GPH and you join them together with 1" before going into your sump you will only be flowing 600GPH. It will not equal 1200GPH because you end up limiting both of them down. I would A) leave them separate or B) Go with 1.5" or 2" like Rich said. Personally I would keep them separate.
     
  7. Andy The Reef Guy

    Andy The Reef Guy Inactive User

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    Makes sense, but your mag 7 isn't going to yield 700gph at the top of the tank, head pressure (from the weight of pushing water up 5-6') is going to reduce that to 450-500gph. You can totally run that mag7 full throttle. for joining, I would use a T with a thru diameter 1" and a 1.5" stem. This part will be listed as a 1"x1"x1.5" slip T. I think Lowes has them, or it might be a special order item, or you might be able to ask Dick Wycasilia (or however you spell it!) to go to the contractors supply warehouse south of town. /DesktopModules/ActiveForums/themes/_default/emoticons/wink.gif
     
  8. Andy The Reef Guy

    Andy The Reef Guy Inactive User

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    That 1"x1"x2" is going to be a real ***** to find! But yeah that would be great!
     
  9. Gered

    Gered Experienced Reefkeeper

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    Awesome site I came across recently on another forum! http://flexpvc.com/cart/agora.cgi?product=PVC-Wyes_ManifoldType
     
  10. Andy The Reef Guy

    Andy The Reef Guy Inactive User

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    OHHH those are nice!!
     
  11. Kylie

    Kylie Inactive User

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    I think i am going to join them in an attempt to take up less space in my sump. Would using the special 1x1x1.5" T work best or if I could find a wyethat did the same change?
     
  12. Andy The Reef Guy

    Andy The Reef Guy Inactive User

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    Yep that will work fine!
     

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