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Old 06-13-2024, 02:20 PM   #1
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Join Date: Apr 2016
Location: Kingman AZ and where our Seneca is today.
Posts: 3,130
Inspecting the water pump strainer

After spending a couple of days troubleshooting all of the possible issues with poor water pressure in our Seneca, I stumbled upon this.

Our pressure on City Water was perfectly fine, all faucets. On water pump with the fresh tank 3/4 full, the pressure would start out fine as the pump started when the faucet opened, then the pressure would gradually fall lower and lower until we only got a 3/8" stream while the pump continued to pump.

As I searched for the issue, I checked the strainer at the inlet of the pump. A visual check showed nothing in the sight-glass and the strainer screen had nothing showing to indicate anything. I kept searching.

After exhausting almost every option, I wondered if there was a blockage in the inlet line to the pump that goes to the fresh tank. I figured that I would blow it out backwards into the tank to rule that line out. As I started taking things apart, I pulled the filter cap and discovered the inside of the strainer was full of debris... scratching my head why the debris was not on the outside of the strainer... I noticed that Jayco put the strainer in backwards and the water was passing through the filter backwards putting all the debris in that tiny cavity inside of the screen.

So - don't rely on a visual inspection of the water pump filter if yours is plumbed like ours was.
Steve & Stacy with Jasper (Australian Cattle dog)
2015 Seneca 36FK
Custom 27' flatbed trailer hauling:
07 Toyota FJC & Yamaha Kodiak 400 ATV

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Old 06-17-2024, 08:24 PM   #2
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Location: Milpitas
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Yep, amazing. I could not figure out why the pressure in our TT was fine except for the kitchen sink. Tried to figure out where there was a kink in the line, it also turned out to the be the strainer.
2019 Chevy express 2500 Van Coversion. 2017 Jayco 23MRB: 26' total and Glacier Package. 2 Renogy solar panels. Married 49 years. Haley the mutt, 4 years old. "Excited to learn new things everyday and humbled by those who offer to help." And very grateful to our Moderators!
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Old 06-17-2024, 08:36 PM   #3
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Cleaning that strainer is part of my wi winterizing procedure. Some years it catches a lot of gunk.

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