Return line drilled hole size in tank?

dreamcatcherr9 · Apr 12, 2020

With an external overflow box, and 2 holes drilled in opposite ends of tank for rerun lines.

What size should the drill hole (or PVC lines) be for the returns into back of tank?

Return pump I’m looking at is 1.25” outlet.

Someone recommended I should drop down to 1” just before return to tank (because 1” nozzles and such are common at 1”??).

Help please!

Idoc · Apr 12, 2020

If you plan on using loc-line, then 3/4" is a common return.

My return pump has a 1.25" outlet...I downsized it to 1" and ran up to my tank where I downsized the final into the tank to 3/4"

dreamcatcherr9 · Apr 12, 2020

Idoc said:
If you plan on using loc-line, then 3/4" is a common return.

My return pump has a 1.25" outlet...I downsized it to 1" and ran up to my tank where I downsized the final into the tank to 3/4"

Thank you! That’s exactly what I would do if I had to. Appreciated. I was thinking about this:

1" Random Flow Generator for 1" PVC

Turn any 1" PVC into a random flow generator Vivid Aquatics 3D printed random flow generators easily slips onto PVC for a custom flow pattern through their patent pending randomized design. Each RFG is made of reef-safe PETG plastic and made to outlast your aquarium. Just slip the 1" PVC fitting...

www.bulkreefsupply.com

mfinn · Apr 12, 2020

Or this,

Jumbo 1in Modular Hose | Vivid Creative Aquatics

vividcreativeaquatics.com

dreamcatcherr9 · Apr 12, 2020

mfinn said:
Or this,

Jumbo 1in Modular Hose | Vivid Creative Aquatics

vividcreativeaquatics.com

Perfect! You rock! Thank you!!

Blue Spot Octopus · Apr 12, 2020

Or this:

Sea Swirl 1 inch Wave Maker - Marine Depot

Sea Swirl 1 inch Wave Maker Feature(s): Oscillates the return from your existing pump or canister filter 90 degrees every 60 secs. Operates with any pressure. Improved circulation - stimulates growth and carries nutrients to corals and plants. Eliminates use of powerheads Sits on top frame

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