How do you eliminate the vortex inside a overflow box?

[WVNed]

You get a pipe tee the same size as the bulkhead and drop in in loose with a hole on the top and one on the side over the open hole. This prevents a vortex from forming. It simply prevents the flow from becoming organized enough.

It doesn't really matter how it sits. It's acting as a baffle to keep the water mixed up.

 

[Lost in the Sauce]

Is the airline for muffling sound or acting as a secondary overflow? Lol, I might be misinformed. Will need to cut it below the top of the box if it is for emergency purposes, but I just thought it was to keep the noise level down

No, the hole in the top of the pipe is there to close the air bleed and create a full siphon if the water level runs that high. The airline also isn't necessary. I leave mine completely open because in the event of a backup which the overflow water level breaches the top of the pipe, I want that full, siphon created immediately to drop it. This is a feature to help it from overflowing in case something goes bad.

 

[Lost in the Sauce]

Ahh...thanks for the clarification. In that case, a bulkhead strainer may help with the vortex on the main drain.

This should definitely help. It will create somewhat of a flow restriction. So be prepared to readjust your gate valve after you install it.

 

[D3DPrintedThingz]

Thank you all, sorry OP for hogging the advice. I will cut airline tubing much shorter when I get home

 

[Robinson]

Do a search for Maggie Muffler, they come in different pipe sizes. On Ebay / Amazon you can find them. the mini is about $12.95 and works for 1" pipe. I do have one on my first emergency drain that usually get some water after starting the pumps and this helps a lot with the noise.

 

[Projects with Sam]

Do a search for Maggie Muffler, they come in different pipe sizes. On Ebay / Amazon you can find them. the mini is about $12.95 and works for 1" pipe. I do have one on my first emergency drain that usually get some water after starting the pumps and this helps a lot with the noise.

that just looks like a stockman standpipe - it'll work and the price is good - do it.