Originally Posted by eheffa
I see that the link here: Water System Accessories
offers the suggestion that the 255 series strainer should or could be used with the Extreme 4.0. I guess if it fits, the downside is that if the water is more turbid or has more debris, the 255 series filter will clog or offer more resistance to flow sooner than the bigger surface area 254 series strainer.
yeah i saw that too.
don't ya just love conflicting guidance?
i purchased the 4.0 in a brick/mortar rv shop locally.
the old guy working there said EVERYONE he'd sold this extreme series pump to that TRIED using the smaller strainer (255)
had issues or problems with poor flow or pump failure or NOISE.
i don't think he was blowing smoke up my backside,
because i already had a NEW 255 (left over, purchased elsewhere) and he willing exchanged it for the 254 strainer.
the fittings DO appear to be exactly the same so it should fit.
my concern would be if the 255 in any way IMPEDS water flowing INTO the pump, that might unduly stress the internals.
you should CALL or email shurflo tech support about this.
and if you do, post back the official 411.