Return pipe, GPH questions

[Ofonléon]

Hi again!

On my 220 g setup, my return will be a 1 inch pipe. But i was planning on attaching a 1/2 dual loc line nozzle at the end. Will this reduce drastically the flow rate of the return?

I was planning on pushing close to 1700 GPH. Drains are 1.25 inch, a full siphon and a durso (herbie method). And a E drain.

Thx.

 

[JK47]

3/4” is less restricted but you can do 1/2”. For better flow split to two, 1/2” bulkheads vs one bulkhead with a split line inside the tank if you’re set on using 1/2”

 

[Ofonléon]

3/4” is less restricted but you can do 1/2”. For better flow split to two, 1/2” bulkheads vs one bulkhead with a split line inside the tank if you’re set on using 1/2”

Thx for the quick response. But 1/2 fitting at the end a 1" pipe will reduce the max flow (pressure) to like 440 gph, no? If i folliw the chart.

 

[Ofonléon]

3/4” is less restricted but you can do 1/2”. For better flow split to two, 1/2” bulkheads vs one bulkhead with a split line inside the tank if you’re set on using 1/2”

Meant 840 gph. Sorry

 

[JK47]

Thx for the quick response. But 1/2 fitting at the end a 1" pipe will reduce the max flow (pressure) to like 440 gph, no? If i folliw the chart.

Meant 840 gph. Sorry

No one can really answer accurately without knowing what pump. Pressure rated pumps like Reeflo are significantly less affected than most submersible IME. Regardless 1/2” is restricting. Splitting that to two 1/2” returns like I mention buffers that number back up.

 

[Ofonléon]

No one can really answer accurately without knowing what pump. Pressure rated pumps like Reeflo are significantly less affected than most submersible IME. Regardless 1/2” is restricting. Splitting that to two 1/2” returns like I mention buffers that number back up.

My pump is a Jecod dcs 7000. Rated up to 1850 gph

 

[duanes]

Reducing pipe size will reduce flow a bit, but will also concentrates flow, all things like pump GPH being equal, you can use a valve to throttle back flow. Here is 1/2" return pipe, to cut back flow I use a ball valve.

 

[Ofonléon]

Reducing pipe size will reduce flow a bit, but will also concentrates flow, all things like pump GPH being equal, you can use a valve to throttle back flow. Here is 1/2" return pipe, to cut back flow I use a ball valve.

The pipe is 1 inch, only a fitting at the end will reduce it to 1/2 in size. I was wondering if it will affect the flow rate alot. If i follow the chart, pressure gph at 1/2" is only 840 gpg. Not enough for what i want to do.

Reducing pipe size will reduce flow a bit, but will also concentrates flow, all things like pump GPH being equal, you can use a valve to throttle back flow. Here is 1/2" return pipe, to cut back flow I use a ball valve.