Filter issue

Kelley

I have a Marienland C220 canister filter on a 37 gallon tank currently with 7 pristella tetras. The tank has been set up for 7 months.

Recently when I turn my filter off to do a water change and then turn it back on, it does not work properly at first. When I turn it back on I can hear it working like before and feel the vibration but there is very little water flow. The first time I did this, I was googling possible ways to correct it when all of a sudden it went back to working just fine. This last time the flow rate just would not come back no matter how many times I primed it. I then took it apart and put it back together and when I released the lever to have it fill up with water there was a large gush of water from the out take tube with alot of debris. So my question is, where did the debris come from and how to I correct it. The filter is working as of right now although the flow rate is slighly lower than what it was before. I am just worried there is more debris stuck somewhere that needs to be removed. Any advice would be greatly appreciated.

jsagrav

Check inside the canister to see if there is a small plastic tube that is attached to the main central tube. It is a siphon tube which needs to be cleaned periodically. That is probably where the blockage is. When it clears itself you hear that "woosh" sound.

Romad

Also check to see if your hoses are kinked or bent. They should be almost straight going up to the input and output tubes.