Abyzz pump question

[Willper]

I would like to reach out to others who have purchased an Abyzz pump. I purchased the A200 for the head pressure as I have a basement sump with a number of 90 degree elbows to reach the Display. When I turned the pump to 85% I noticed the inlet created a small vortex and that created micro bubbles in the Display.

I dropped the power to 75% to stop the vortex, but the GPH dropped below 400 which I felt I needed to run through the UV sterilizer. The sump water level is at 7".

Any advice will be greatly appreciated.

Bill

 

[SPR1968]

In the instructions ‘somewhere‘ it mentions it’s more efficient if there is a straight piece of pipe work feeding the pump

So here’s mine, a200, which basically has a 50mm socket on the inlet, and I run it at 86% which is about at the top of the power band graph

This should hopefully help, otherwise you may need to increase the sump depth a little, mine is around 9 inches

 

[Breadman03]

On my RD3-230, I slipped a downturned elbow on the intake. The pump is only about 2/3 submerged and I have no issues with a vortex even at 100%. It might be worth exploring for like $5.

 

[Willper]

Thank you both for your input. I think the extension for the output will be the first thing I try. I remember that one tip was to have 20mm (about 8") free distance from the output to a sump wall.

Bill

 

[PedroYoung]

Thank you both for your input. I think the extension for the output will be the first thing I try. I remember that one tip was to have 20mm (about 8") free distance from the output to a sump wall.

Bill

Can you post a pic? I also have the A200 in my basement but only run it about 78%. My sump depth in the return section is about 8" (where the ATO kicks in)

 

[ca1ore]

You could make a ‘cowel’ for the input. I did this for the suction side of my closed loop because it was too close to the tank surface and periodically sucked in air. Worked perfectly.

 

[Willper]

I used the input disc that came with the pump, slipped it over the intake and was able to keep up the flow without any micro bubbles in the display. I ordered some metric pipe to extend the input out a few inches. Also it is 20cm not 20mm.

Thanks,
Bill