Forum Discussion
Gjac
Mar 20, 2014Explorer III
myredracer wrote:I was referring to filtering the water going into you your FW tank. At 2 gpm that would take 200 mins to fill a 100 gal FW tank. You would have a lot of folks waiting in line.Gjac wrote:
Remember each filter that you add will produce back pressure and slow the filling process.
Sorry, but that's not quite true. That can be the case but it depends entirely on the filter cartridge size and the specifications for the particular filter(s). Some have excellent flow rates and low pressure drop. I haven't measured it yet, but I am probably getting about 2 gpm after 4 filters despite the last filter being 0.2 microns (absolute). That is pretty dang good and waaay more than needed to fill a drinking glass (which the last filter is for).
When choosing a filter(s), it really pays to look closely at their specs.
It also depends a lot on the regulator you have. I've got a Watts 263A regulator good for up around 5 gpm, compared to the basic inline ones at around 1 gpm. You'll have higher pressure drop through an inline regulator too.
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