Rheem Tankless flush and descale with single handle service valve set

This video shows the process for flushing and descaling the Rheem tankless water heater with single handle service (isolation) valve set. Don't let the single handle valve set confuse you, just like the double handle valve set they are easy to understand and use. Includes tips on cleaning the inlet water filter.

[@safaria12]

Thanks

[@cfldriven]

And thank you for watching.

[@arthurbrands6935]

One more thing, the heater is rated for 4.6 gpm, so the descaler pump should be equivalent or better, correct?

[@cfldriven]

The tankless is not running so it doesn't matter what your pump gpm is as long it circulates the solution.

[@arthurbrands6935]

So, it's not that different from descaling a Cleveland Steamer Boiler, aside from the inlet filter, and using vinegar rather than descaling fluid! Thanks for an informative video!

[@cfldriven]

Just make sure to disconnect power to the unit rather than using the shut down button.

[@baronfung2621]

Since there is no secondary isolation valve, will water squirt out when you remove the service caps?

[@cfldriven]

Baron, only if you have it in the wrong position. Normally there should be no squirting, although there maybe some dripping.

[@baronfung2621]

@@cfldriven Thanks for your quick reply. I just finished the flush and water did not squirt out when I opened the caps. Just some water leaked out slowly.

[@cfldriven]

@@baronfung2621 Congrats on getting the job done. Don't forget to clean the filter. ua-cam.com/video/jQ7Y6ujFbWg/v-deo.html