07-01-2011, 08:59 PM
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Procedure for changing filter on Magnum
Okay, so I got the Magnum 350 hooked up and running and I want to rinse off the cartridge. So, while the filter is still running I turned off the inlet valve, thinking this will lower the level in the filter so I can remove the top. Nope, it just stops filtering, but the canister remains full of water. That doesn't seem right, because when you close both inlet and outlet valves and remove the top, you're going to have water all over the place. What I did was remove the inlet tube from the tank to break the vacuum and the filter then pumped out enough water that when I removed the top there was no water going all over....I've read the instructions, and can't find any information. I KNOW I gotta be missing something pretty simple.....Can someone explain this to me?