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FYI 3D Printed Cap Wrench for On The Go Portable Water Softeners

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Neal

Staff member
RVF Administrator
Joined
Jul 27, 2019
Messages
11,480
Location
Midlothian, VA
RV Year
2017
RV Make
Newmar
RV Model
Ventana 4037
RV Length
40' 10"
Chassis
Freightliner XCR
Engine
Cummins 400 HP
TOW/TOAD
2017 Chevy Colorado
Fulltimer
No
I was at a CG recently and @ARD couldn't get her water softener cap off. I have large channel locks (pliers) that we used but I was in fear of damaging the plastic cap. A neighbor happened to be aware of various accessories by On The Go Portable Water Softeners and one of which is a cap wrench. Works like a charm. It's cheap on their web site, add shipping and it can get a little more pricey but I figured I haven't done my 3D printing hobby in a while so why don't I whip up a design and print my own. Voila:


I highly recommend their large water softener, it's been a life saver out west and other locations. I now use the test strips to test the water at the city water spigot prior to connecting to determine if the water is hard or not.

Amazon.com: On The Go OTG4-DBLSOFT-Portable 16,000 Grain RV Water Softener: Automotive

Amazon.com: JNW Direct Water Total Hardness Test Strips, 150 Strip MEGA Pack, Best Kit for Accurate Water Quality Testing to Determine Soft or Hard Water, Free App & Ebook Included: Garden & Outdoor

https://www.amazon.com/dp/B00004SBCU/?tag=rvf01-20

water-softener.png cap-wrench-standalone.jpg water-softener-cap.png cap-wrench.png

EDIT: I forgot, we put food grade o-ring lubricant I had on the o-ring under the cap and that solves the problem of the cap sticking. This is also good for your dump/gate valves when the time comes they need to be lubricated.

https://www.amazon.com/gp/product/B00CTM3IFQ/?tag=rvf01-20

lube.png
 
Last edited:
Thanks @Neal - The cap wrench is printing as I write this. Also, thanks to you and @redbaron for getting me into 3D printing. Since January I've printed many different and useful items while learning Fusion 360 and having lots of fun!
 

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