I am planning to install an under-sink water filter in my kitchen which will tee off from the 1/2" copper cold water line to a cold water dispenser with a 1/4" inlet. My water supply comes from a gravity-fed spring and the water pressure is on the low side (24 psi in the basement). My question: would there be any advantage to use a filter housing with 1/2" inlet/outlet ports and reduce the outlet port to 1/4"? Or would that be a bad idea? The water filter I am planning to use in a 10" imperial sized Doulton Sterasyl. Thanks!