Bubbles in My Drain Lines

[Uncle Boo]

My tank has only been running for 24hrs but this looks like a potential problem. Temp is 76.9 and salinity is 1.021. I will raise salinity a bit more, I was trying to let things stabilize.

I have a pretty steady stream of bubbles from my drain lines and it does make a lot burping noises. Here is how I have the dursos set.

I have ball valves on the drain lines and a gate valve on the return line. I tried them all in different positions and it had no effect. I have one small section of clear drain line on each drain pipe and I can see the bubbles coming out of the bottom of the bulkheads, so the cause may be the durso's? The burping, glugging sound is very annoying.

What can I do to fix this?

 

[Uncle Boo]

I forgot to add, all the noises are coming from the sump end of the drain lines. Aside from a little cascading water sound the overflows make no noise at all.

 

[Uncle Boo]

Do you think if I drilled a few holes in the drain lines above the water line it would help let the air escape?

 

[Shaun120]

Just be patient…on the little bubbles. There are always a lot of tiny bubbles in the initial setup of a tank. I have noticed them to subside around a week or so.

Don't drill anything...it will make it worse

The gurgling and larger bubbles are due to the turbulence of the water flowing through your overflows or in your case Dursos. You can reduce the flow of your return pump, which would decrease the gurgling. I would rather put up with a little gurgling from the drain lines instead of decreasing flow.

 

[Toddrtrex]

You can also try this (see picture) the outlet is only half under water.