Things Even I Can Do: Episode 4. This video shows how to flush a tankless water heater with vinegar as part of a preventative maintenance routine. Do it yourself! In areas with hard water, this flush should happen at least annually to descale the unit. If you have a water softener, annual flushes are probably not necessary, but should still be done periodically. This video is fairly detailed and intended for folks who have not performed a flush in the past. For the more confident, a brief step by step list is available on the Rheem website here: https://www.drftps.com/wpcontent/upl...

Amazon Links (Using this link helps support my channel.)
Pump used in the Video: https://amzn.to/3UrO50t
Similar well rated pump: https://amzn.to/3UbI1HY
Hose Set: https://amzn.to/3TNxZy7
Bucket: https://amzn.to/41NXlOo

Or you can buy this complete set directly from Rheem: https://parts.rheem.com/product/RPDR...

00:00 Intro
00:45 Parts you'll need
02:28 Gas and Power Shut Off
02:50 Ready the Pump
03:09 Shut of Water Flow
03:42 Connecting the Hoses
04:29 Open Service Valves
05:01 Check PreFilter
05:39 Add Vinegar
05:58 Connections ReCap
07:07 Power on the Pump
07:57 Post Flush
08:11 Fresh Water Flush
09:12 Recheck PreFilter
09:25 Reset Valves to Normal
10:20 Restore Power and Gas
10:44 Conclusion

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Note: I'm not an expert and these videos are demonstrations on how I have done things myself without benefit of comprehensive training. Use of these videos should be as a supplement to your own research and expertise.