Overflow plumbing

[zoalord]

I’ve got an eshopps 800 overflow from there it drains into a right angle then hits another 90 degree, then straight down into a sump. The pvc goes into the water quite a bit. About every 15-30 seconds I get a gurgle from the sump drain. And I can see the water level drop in the overflow briefly.
I have a pretty strong return pump that is turned down. I’m mainly looking for recommendations to eliminate this gurgle every 15-30 seconds. Slowing down the return to its slowest setting has no effect on the noise. I’ve also seen a couple of sumps with holes cut into the pvc which would still be within the water. I can definitely cut the pipe and redo. Could also turn the single down into the sump into two with a T. Your help and recommendations is appreciated.

 

[stewy14]

I’ve got an eshopps 800 overflow from there it drains into a right angle then hits another 90 degree, then straight down into a sump. The pvc goes into the water quite a bit.

pic plz

 

[zoalord]

pic plz

Attached; sorry for the delayed response

 

[stewy14]

Attached; sorry for the delayed response

that gurgle is water pushing water up the water column, as shown in picture 2, try and raise the pvc, dont cut it unless u have an extra pvc

 

[zoalord]

Have plenty of extra. You mean in picture 1? Cause the gurgle happens in the sump at the drain exit not in the top.

 

[Solo McReefer]

You're sucking in air

If you have gurgles and bubbles

A gate valve on the drain can stop it from sucking air

 

[Snoopy 67]

Pipe should be no more than 2" under water in the sump.
Yes, you need a GATE VALVE on the drain.

 

[danreef55]

The gate valve is definitely the solution but here is a trick that might help you until you can re-plumb. Take a piece of airline tubing and stick into the top of the drainpipe and down into the water. The top end should be in the air. Now you can raise and lower until the noise goes away. It is worth a shot