Maxi jet and micro bubbles

theyammieguy

New member
I replaced the stock pump in my 12g jbj last weekend with a mj 900, now I notice it's shooting out bubbles every minute or so.
Anyway to stop this?
 

Felix T Cat

New member
Sounds like it is sucking the chamber dry. Do you still have the big sponge in the first chamber ? If so try pulling that and see if that helps.
 

theyammieguy

New member
It's in the rear chamber.

I do not have the sponge and it is not sucking it dry. I have around 5-6 of water on top of it.
 

B-Willz

New member
it maybe that there is air still trapped in the housing. With my maxi after servicing it I have to place it in the water and roll it and tap it to get the air out of it.
 

B-Willz

New member
You would be suprised. The maxi jet motor housing can hold quite a bit of air. Just try to roll it around and tap it for a little bit.
 

Names Brucey

New member
maxijets will hold a lot of air in the housing. I sit and shake mine whenever I pull it out and put it back because of the same issue.
 

WharfRat

Celebrating 9 sober years
Could be creating a vortex and sucking in air that way. Any way you can move it down or point it down. I'm not familiar with that set up so just tossing out ideas.
 

mille239

Premium Member
Could you glue a small 1/2" elbow to the intake so it is drawing water off the bottom of the chamber? less chance of it creating a vortex.
 
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