Tunze d/c help

[hammerd]

Hey y’all, so my tunze has been producing micro bubbles and ive been trying to figure out what the problem is. Today I decided to check behind it and I got this footage of bubbles escaping. Does anyone know how to solve the issue ?


edit: the video isn’t posting but it’s basically this

 

[blaxsun]

Is this a return pump? When was the last time you cleaned it?

 

[hammerd]

Is this a return pump? When was the last time you cleaned it?

It’s a skimmer, have bubbles escaping out the back

 

[hammerd]

Update: i took the whole thing apart. There was a part in there that wasn’t high enough up and that fixed it