DIY Overflow Ver 9999

  • We are currently upgrading MFK. thanks! -neo
Nice job , Looks good
 
Finally got it in the tank and going. Started up pretty easy. It is virtually silent as well. I have also discovered that the increased pipe size (2") seems to suck off the surface better even though it doesn't have any more volume than a 1" pipe.
 
What do you think the flow capacity is? I just build a DIY sump and I might need to steal this idea for the sump and I'm wondering if this will keep up with a mag 12?


P.S. where in ohio are You?
 
I would say that it should be around 600gph, same as any 1" overflow. I'm running a tetra 1200 from lowes on this one and a standard 3/4" one I did. However my plumbing is a little jacked up at the moment and I have some other changes to make before I see the full capacity of this thing.

I'm about an hour east of Cincinnati.
 
good news .. 2 would not look bad in the tank .. so you could always make another .. did you calculate how much the total was?
 
I plan on making a second one or I have another idea floating around my head that I may do. Total cost was about $35 but I have enough pipe left over for a second one and one or two extra fittings as well.
 
sweet .. i really want to build this .. and steal your design .. so i might ask a few more questions .. but i plan on having one of these in my tank soon
 
No problem. Here's some calculations if you want to do different sized pipe. Basically I wanted to make sure that the area left in the outer pipe was at least as much as the inner pipe.

Pipe Size-----Outside Diameter---Inside Diameter--Area Outside--Area Inside
1"-------------------1.315---------------1.049-----------1.35--------------0.863
1.25"----------------1.66----------------1.38------------2.16---------------1.49
1.5"-----------------1.9------------------1.61-----------2.83----------------2.03
2"-------------------2.375---------------2.067-----------4.42---------------3.35
2.5"-----------------2.875---------------2.469-----------6.48---------------4.78

----------------Area left
1" in 1.25-----0.137512375
1" in 1.5------0.677356875
1" in 2--------1.99646224
1" in 2.5------3.42788776
 
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