[QUOTE=slief;25506410]Very glad to help. They do get slower due to buildup but the buildup that really slows them down is actually inside the magnet cavity and on the magnet since it creates friction inside the pump. That’s why it’s important to take the pump completely apart if you really want to get it clean where it counts most in terms of longevity. This goes for pretty much all pumps that use a magnet on the impeller. Granted, buildup on the veins outside the pump will restrict flow through the pump but buildup inside the magnet cavity slows the rotor down and will eventually overload the pump.
By the way, your pump looked clean compared to how bad my Tunze’s get.
This is one of them before my last cleaning. They turn into rocks by the time I get around to cleaning them though they never skip a beat or slow down.
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That pump is covered in coraline, it doesn’t even look like a pump lol looks more like a rock. Yea I know my pump wasn’t that dirty it mostly had green Hair Algae.