Bubble Magus NAC7 Stop Making Bubbles

[Ibuild2586]

I have had my protein skimmer up for about 9 months. This week it stopped making enough bubbles to foam over the cup. I gave it a good cleaning and it helped a little bit. However, the bubbles still don't get above the water column in the skimmer and don't foam over into the cup. Any suggestions?

[reefmutt]

you sure you cleaned out all the hoses and venturi section of the pump? sounds like you aren't getting enough air..

[Ibuild2586]

I cleaned the Venturi well but not the hoses. I will give it a shot. Thanks!