Overflow to sump plumbing

[Badboyzwicked]

Hi guys,

I'm still in the planning stage for setting up my first tank and have a question about plumbing. I have decided to go with the new shadow overflow from Synergy Reefs and a Trigger systems sump. The overflow has 1.5" bulk heads and the sump has 1" bulk heads. My question is do I just use a reducing coupler 1.5" to 1"? and does it matter if I reduce it at the beginning or at the end? Or is there a better way of doing this.

Thanks in advance!

 

[Sk8r]

Is the bulkhead you're talking about in the sump a submerged bulkhead or just an opening for the incoming hose? I can't feature a 'down' line ever being submerged: usually they just pour in through a hole in the top.

 

[cheucklate]

How big will your tank be. If it's under 150g, 1 inch diameter would be plenty enough with bean animal overflow. Just put reducer in the beginning and save some money with smaller PVC.

Smaller bulkeads would mean you need to fine tune it much more accurately for a silent siphon. just my opinion, feel free to correct me. BTW your setup sounds like it'll be awesome! good luck

 

[Badboyzwicked]

Im planning on a 120g tank. The bottom bulkheads on the sump are not submerged, like you said Sk8r. Thank you guys for the help. Very much appreciated.

 

[thegrun]

1" drains for a 120 would be better, even with a very good quality 1-1/2" gate valve it will be very difficult to adjust your flow, the slightest movement of the valve will make to large of a flow difference, reduce the drain lines down to 1".

 

[Badboyzwicked]

Thank you for the advice. But wouldn't the rate of the return pump be the main factor vs the size of the tank? No matter how big your tank size is its the rate of the return pump that is going to affect the amount of water going down the over flow. No?

 

[Ztous]

Unless your going to some crazy high rate return pump 1 inch will be fine. It can candle around 950GPH at gravity if I recall correctly.

 

[Fuel Doodle]

Hi guys,



I'm still in the planning stage for setting up my first tank and have a question about plumbing. I have decided to go with the new shadow overflow from Synergy Reefs and a Trigger systems sump. The overflow has 1.5" bulk heads and the sump has 1" bulk heads. My question is do I just use a reducing coupler 1.5" to 1"? and does it matter if I reduce it at the beginning or at the end? Or is there a better way of doing this.



Thanks in advance!

As water falls, gravity accelerates the velocity of the falling water from zero to "infinity". This causes the cross section to reduce as you decrease the height from which water was at zero velocity. If you put a 1.5 to 1 reducer, put it 1/3 of the overall height measuring from the top. This should cause a liquid seal (water filling the whole pipe) and prevent bubbles with minimal loss in flow rate.


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