578 | C1 Faucet collections · Installation Loft-E Installation, use and maintenance 3.3. CLEANING OF FILTERS 1 2 SINGLE WATER MODEL Closed PRE-MIXED MODEL ×4 3 Decalcify the lter at intervals by placing the interior unit in vinegar. Clean the lters whenever any marked reduction of tap ow is noted. 4 5 SINGLE W ATER MODEL PRE-MIXED MODEL ×4