[Ponds-Koi] Noise from filter. What can I do???
It sounds like you are getting air infiltration into the system which is causing the gurgling sound inside the pipes. The other thing could be that you have two discharge pipes and if they are both the same diameter as the single intake pipe, then the water is being halved where it splits into those two pipes so there is possibly air in them. You could make sure that you have them set up so they fill up with water first, before the water then discharges or you could make the two discharges smaller so they stay filled with water from the single intake.
Lenny Vasbinder Fish Blog - http://GoldLenny.blogspot.com
Category: Philippines Internet Koi Society
