The ideal Standard 10" Carbon Block 5 micron Cartridge removes chlorine and odors.

A set of 3 of these has been certified by NSF for chlorine removal for 200,000 L (approximate upper limit of annual water consumption in an apartment).

Note that the 'activated carbon' process works when the carbon particles touch the water. Fine silt/mud will coat the carbon and render the cartridge largely ineffective. Media material is from Coconut fibre, vastly superior to charcoal carbon, with superior life and reduced channeling.

When fittings always relubricate the sump Oring and threads, to enable sealing from hand tightening the sump. This avoids flattening of the Oring due to 'overtight'.

Always purge before finishing your systems cartridge change, to avoid unnecessary air spurting through your household taps.