Buble forming at ehiem 1048 outlet
 

Guys... I'm using an ehiem 1048 pump paring with maxxxpert miro 1 set...
As on the topic, bubles are forming rapidly at the outlet of the pump. I can't see any bubles going into the pump but they are coming out from the pump non stop. Is there any way to stop buble from coming out?

Thanks

Use a hose clip :D . Make sure the barb is clean and dry (and the tubes inner surface) before assembling them...

If that does'nt work try some silicone sealant and let it cure/dry...

man, I had the same problem and it turned out to be a leak in the inlet seal. I had already chopped up my pump so it wasn't under warantee, I tried a ton of things to fix the seal. I wound up filling the pump with a plastic enamel it worked for a while then stoped working all together. Because i filled it with enamel I couldnt take it apart to fix or replace any parts. If I were you I wouldnt fill it with enamel and I would get it serviced. If you need to find the leak put the pump under water and plug one end of tubing and blow into the other. Air bubbles should come out of the leaking area.

Thanks for the suggestion... Will try this later and see if it fix the problem...

You may also be experiencing "cadience" (spelling?).
That's when the loop is so restrictive, the blades of the pump "rip" through the cooling rather than energising and presurising it.

Best way to tell that is to take it out of the system and just have it pump. Ie, tube on inlet, tube on outlet. If there are still bubbles, you've got an air leak.

If not, you may have an air leak that only occurs when the pressure inside increases or you might have my "cadience" (is this the right word - can't be arsed to look it up).