Need some ideas how to plumb 500gal

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SandNukka15 said:
So if your oveflow drains are 4.....1 inch and 2.....3/4 inch.......that is a gravity drain of about 3200 gph

Personally i would want a higher turn over rate so i would use 7 out of the 8 as gravity drains and put some sort of corner or T fitting to spread the water out in diff directions

With 7 drains your looking at roughly 3800 gph...

Thats about 7.5 turnover rate roughly which i think should work well....most people say 5-10 turnover rate.....i prefer 7-10x
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You were close. There are 4 holes in the overflow 2 are 1" and 2 are 3/4"
 
If the return is just 1 inch remember there is going to be over 3000gph coming thru so i would add a T or that water is spray your lids up in the air lol.......

1 inch return can handle about 3500 gph max
 
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SandNukka15 said:
So if your oveflow drains are 4.....1 inch and 2.....3/4 inch.......that is a gravity drain of about 3200 gph

Personally i would want a higher turn over rate so i would use 7 out of the 8 as gravity drains and put some sort of corner or T fitting to spread the water out in diff directions

With 7 drains your looking at roughly 3800 gph...

Thats about 7.5 turnover rate roughly which i think should work well....most people say 5-10 turnover rate.....i prefer 7-10x
Click to expand...
In this post you have my tank having 6 overflow holes. It only has 4 holes
 
I personally wouldnt want PVC floating in the middle of my tank, if you are brave enough, I would just widen the existing holes (if there is room) or drill the other side and add another weir.

Those holes in the bottom look like a perfect opportunity to plumb a drain for water changes, if the area you are putting the tank will allow it.
 
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Lucas&kim said:
In this post you have my tank having 6 overflow holes. It only has 4 holes
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You have 8 holes total.....nvm i dont think u get what i am trying to explain

They way i listed is the only way your gonna get a 7x turnover....

Your only other option is to drill bigger holes for gravity drain or do an above tank sump
 
Owens said:
I personally wouldnt want PVC floating in the middle of my tank, if you are brave enough, I would just widen the existing holes (if there is room) or drill the other side and add another weir.

I would never try to widen already drilled holes.... if he uses one of the bottom holes in the tank as a drain for water changes all of the sand will just get sucked thru

Those holes in the bottom look like a perfect opportunity to plumb a drain for water changes, if the area you are putting the tank will allow it.
Click to expand...
 
Take the lower flow from the holes provided in the overflows, and use the holes drilled in the bottom for a closed loop system. Not all the flow in the tank has to go through the sump?
 
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ragin_cajun said:
Take the lower flow from the holes provided in the overflows, and use the holes drilled in the bottom for a closed loop system. Not all the flow in the tank has to go through the sump?
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Okay so your saying that 1800 gph is enough flow through my bio filtration. And the other 4 holes in the bottom can be on a closed loop. I didn't think 3.5x turnover through the bio would be enough
 
SandNukka15 said:
You have 8 holes total.....nvm i dont think u get what i am trying to explain

They way i listed is the only way your gonna get a 7x turnover....

Your only other option is to drill bigger holes for gravity drain or do an above tank sump
Click to expand...
I'm understanding. The first monster tank I've had trying to get it right. With minimal maintenance.
 
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