sequence reef flow pump frozen

[underseaworld]

I have this sequence reef flow pump that decided to lock up on me. I am unable to get it to turn. Anyone else had this problem? I am hoping I can get it to work so I do not have to go out and purchase a new pump. I have own this pump brand new for 3 years.

The second pump which is the same type of pump that is part of the closed loop on the tank is running on the weak side.

My other question is this pump about to lock up on me too.

Other then maybe having to buy a new dart for a direct replacement is there any other pump that my work. I am hoping I do not have to modify the piping of the tank.

[reefplayground]

Hi, several questions.

I take it that the sequence is your main sump return pump.

Is there a 90 elbow near the intake? and is there a possibility that the intake portion got air trapped inside?

Is there a check valve in the pumps return line, and can you by-pass it any way?

Also when was the last time you cleaned out the impeller assembly?

How high is the pump currently set-up to pump?

There is a quick trick that works most of the time. Fill up your sump to the very rim and turn on the pump. The extra pressure form the water will help kick start the pump is low pressure is the issue. If its clogged/jammed, you will need to clean it out.