Water Pump Replacement - ShurFlo vs Flo Max??

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   Hi all - just back from a great trip up through northern Idaho. Halfway through, water pump is giving me problems (keeps kicking on, allowing city water to bypass and overflow, now leaking from the front of the pump). Its 11 yrs old so I'm going to replace it rather than see if the diaphragm is shot. The original is the ShurFlow 4008, eTrailer recommends a FloMax as a direct replacement with higher pressure and gpm. Anyone have any experience with one vs the other? I know the OEM would be fine, but there's not much price difference so wondering if the FloMax is worth a shot. I've always had good experiences with eTrailer.
Thanks, all!

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Ben Herman Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 26 Apr 2018 Location: Gr Junction, CO Online Status: Offline Posts: 359	Post Options Post Reply Quote Ben Herman Report Post Quote Reply Topic: Water Pump Replacement - ShurFlo vs Flo Max?? Posted: 20 Jun 2025 at 8:01pm
	Hi all - just back from a great trip up through northern Idaho. Halfway through, water pump is giving me problems (keeps kicking on, allowing city water to bypass and overflow, now leaking from the front of the pump). Its 11 yrs old so I'm going to replace it rather than see if the diaphragm is shot. The original is the ShurFlow 4008, eTrailer recommends a FloMax as a direct replacement with higher pressure and gpm. Anyone have any experience with one vs the other? I know the OEM would be fine, but there's not much price difference so wondering if the FloMax is worth a shot. I've always had good experiences with eTrailer. Thanks, all!

JR Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 31 Aug 2018 Location: Manistee, MI Online Status: Offline Posts: 406	Post Options Post Reply Quote JR Report Post Quote Reply Posted: 21 Jun 2025 at 9:00am
	I have had good luck with ShurFlo and it seems that you have also (11years). I have not heard anything about the Flo Max so I would vote for the ShurFlo. But that's just me. Good luck, Jay.
	Jay 179/2019

Ben Herman Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 26 Apr 2018 Location: Gr Junction, CO Online Status: Offline Posts: 359	Post Options Post Reply Quote Ben Herman Report Post Quote Reply Posted: 21 Jun 2025 at 9:33am
	thx that makes sense to me as well.

jato Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 23 Feb 2012 Location: Kewadin, MI Online Status: Offline Posts: 3432	Post Options Post Reply Quote jato Report Post Quote Reply Posted: 21 Jun 2025 at 1:01pm
	After 12 years we thought the original Shur Flo was getting a bit noisy so replaced it with a similar Shur Flo. Funny thing is that the new one wasn't a whole lot quieter than the one we replaced. However i did tie a couple water lines together so that they don't rub when the pump runs, resulting in a quieter sound when the pump is running.
	God's pod '11 model 177 '17 Ford F-150 4WD 3.5 Ecoboost Jim and Diane by beautiful Torch Lake "...and you will know the Truth and the Truth will set you free."

Ben Herman Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 26 Apr 2018 Location: Gr Junction, CO Online Status: Offline Posts: 359	Post Options Post Reply Quote Ben Herman Report Post Quote Reply Posted: 21 Jun 2025 at 2:07pm
	Thx I'll try that - noise hasnt been a problem, just malfunctioning. I may try mounting it with thick rubber washers between the pump and floor to isolate it more.