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I replaced the cartridges but now it’s making noise. I already ran the spigot continously for a minute to let out any air pockets. What to do guys?
My reverse osmosis system makes noises occasionally while it is filling the tank.
Nothing to worry about, it's just the water pressure pushing the water through the system.

You might check all of your fittings and connections to see if everything is 100% tight. And you might try backing off the water pressure a bit if you have an on/off valve for your system.
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You did not mention the type of noise. Go back and check every step you performed. Make sure that everything is correct.


The OP did not mention a RO system. Just filters.


Without more information, not much we can tell you.
 

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It never made any noise in the past. Just started right after i changed the cartridges.
And now it's working right.
My RO has make noise since day one.
If it stopped making noise I would think it was broke.

You can try turning off the water supply and running the tank dry then start all over. No guarantee, but something to try if the noise bothers you.
It's air in the system around the filter(s).
You can try tapping on the filter casings to dislodge the air.
 
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