My reverse osmosis system makes noises occasionally while it is filling the tank.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?
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.