Jan 22 2012, 09:15 AM
QUOTE(Optiplex330 @ Jan 22 2012, 09:06 AM)
This is the part I find most funny. If you have a household of 2 people, you change it once a year. But if you have a household of 20 people, you also change once a year? Where is the logic for that? Surely 20 people consume more water than 2 people. No?
+1
same concept with car service, 3months or 5000km which even come 1st...
I using amway indoor water filter, the machine have the timer counter to "force" me change the filter cartridge every 12 months even though it serving 2 adults in my house...
but it also have the water usage calculation by litre as the lifespan will shorter if filter more water within 12 months...
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