Plumbing submersible pump question

[888fish]

Hello.
I have a Quiet One 5000 submersible pump with a rated 1300 GPH. With a 5ft head loss to the top if aquarium, its closer to 1000 GPH.

The pump has a 1" MPT output nozzle. Should I use 1" PVC and 1" 45 degree elbows, 1" ball valve throughout until I reach the output nozzle? Or should I use 1.25" ?
Thx!


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[isde02]

I would go larger than 1" because the inside of a 1" ball valve is smaller than 1" and would further restrict flow.

 

[Jc1119]

I use 1" everything on my q16000's but I don't use ball valves on the outputs. I valve my drains instead.

That being said, I upsize my checks up to 1 1/2" on my pump outputs.


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[888fish]

So should I just use 1"pvc on everything except using couplings to increase to 1.25" ball valve and then go back to 1" to complete the outlet nozzle? Thx.


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[Jc1119]

That would probably work pretty well. Nothing wrong with upsizing your return lines in my experience other than a little added cost for larger fittings.

Sounds like a plan!


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[Gill Blue]

I used clear vinyl 3/4" from my laguna 1500. no valves, no angles, just a gentle S curve. I'd just use 1" vinyl.

 

[Jc1119]

I used clear vinyl 3/4" from my laguna 1500. no valves, no angles, just a gentle S curve. I'd just use 1" vinyl.

That's how my 120 is setup. 1" flex out with a 1 1/2" swing check. Works really well.

I


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[aldiaz33]

Below is Reeflo's recommendation for pipe size for a given flow rate. You are kinda in a 'tweener situation. If you really want to maximize flow, using 1.25" plumbing will be better than 1", but it's not going to make a huge difference either way.

 

[888fish]

Thanks everyone!


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[888fish]

After all that, my 1.25" DIY PVC plumbing can't keep up with my submersible pump as I have to obstruct the flow 25% with my ball valve.


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