I'll use some sort of plastic screen maybe, possibly the light difuser grids that I have a bit of extra from and put that in front of the output tube so the bio bale does not get sucked up.
Other than that I don't think I will add anything to the bottom of the bucket at all. Reason I have the output on the side so that I can use the waters momentum to the pumps advantage. The water will already be moving in the direction of flow into the output tube. The flow will not have to change direction untill it hits the 90 degree turn upward.
Other than that I don't think I will add anything to the bottom of the bucket at all. Reason I have the output on the side so that I can use the waters momentum to the pumps advantage. The water will already be moving in the direction of flow into the output tube. The flow will not have to change direction untill it hits the 90 degree turn upward.