| 摘要 |
<p>A water purification system (l0) having a first pressure vessel (l5) containing a reverse-osmosis filter (29) and a second separate pressure vessel (l4) containing an activated carbon prefilter (25) operatively connected in series and upstream of the first pressure vessel by means of a common header (ll). The activated carbon prefilter (25) includes a particulate trap (60) upstream of the activated carbon to trap sediment carried in the unpurified water. The particulate trap (60) is compressible under operational water pressures attained in the system when the trap becomes clogged with sediment, which serves to crack or break away from the surface thereof particle accumulations clogging the trap, permitting flow to continue through the trap into the activated carbon and, subsequently, through the reverse-osmosis filter element (29).</p> |
