How I just fixed a tankless water heater issue.

DonTom

Senior Member
RV LIFE Pro
Joined
Apr 21, 2005
Posts
19,392
Location
Auburn, CA or Reno, NV
In this class A, the only way I could get hot water in the bathroom sink was to run the shower to get a good enough flow so the sink water would get hot. And that was the way it was since new (doesn't stuff in RVs get tested anywhere before delivery?).

I tried removing the faucet aerator (yes, it was clean), and then it did give hot water, but it flowed out in a very messy way, which made that idea unusable.

To get it to work perfectly, I first removed the green thingy shown below from the bathroom faucet aerator:

1766968979601.png

Then I drilled a 3/16" hole into the rest of it, all the way through. I did NOT replace the green thingy shown.

I tried it out, and it works perfectly. I will no longer need to run the shower to get hot water at the sink. The flow is perfect. I was lucky, as I didn't expect it to work so perfectly on the very first try. It was beginner's luck, I guess, because I had no clue what would work.

Removing the green thingy without the 3/16" hole was no help. The 3/16" bit is what perfected it.

-Don- Douglas, AZ
 

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