Will sediment filter slow my flow??


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Old 04-13-08, 06:41 PM
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Question Will sediment filter slow my flow??

I'm considering installing a basic whole house sediment filter. I'm on city water not well, so should I bother? Will it lower my pressure? Nothing fancy-just a basic clear GE one or comparable.
 
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Old 04-13-08, 06:58 PM
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Why should you bother? That is the question...

If you decide you have to have a sediment filter then you need a filter and housing that will flow at minimum the peak SFR (Service Flow Rate) of your plumbing and fixtures.

In general the el cheapo GE and similar 10" filter housing fall far short of that capability. Usually the correct installation requires a 20" "big blue" type housing in either 2.5" or 4.5" diameter and sometimes two housings in parallel to meet the peak SFR.

If you do decide to install any kind of whole house filter at POE the smart thing is to install pressure gauges before and after the filter housings. When you see a 15 lb pressure drop across the filter then you know it's time to change the element.

Don't forget to install 1/4 turn ball valves before the filter housings so it's easy to change the elements.
 
 

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