try these they work wonders!
but seriously, i had this problem as well. I fixed it by taking 8" of 1/2 tubing, gluing it to an acrylic piece with a 90 degree lip on it, and put the free end into the bulkhead pipe. this allows the air to vent out of the pipe and prevent gurgling. ill try to post a pic tmrw

but seriously, i had this problem as well. I fixed it by taking 8" of 1/2 tubing, gluing it to an acrylic piece with a 90 degree lip on it, and put the free end into the bulkhead pipe. this allows the air to vent out of the pipe and prevent gurgling. ill try to post a pic tmrw




