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**sourdough** · 09-07-2019, 06:34 PM

I use the blank tank flush all the time when we have the ability to do so. I understand "filling it up", dumping and filling again. The problem is that there are always residual "things" left in the tank when just pulling the handle and dumping...they don't come out (just run the black tank flush after every dump...there it is). Repeatedly doing this for the long term will cause problems IMO. Plus, running the flush takes all of 5 minutes. Sort of like "err on the side of caution" and there's nothing to it.

In the old days there was no such thing and never did it. Nowadays it's there, it's easy and just another way to make sure you don't have just one more issue with the RV. JMO/YMMV I'm sure.

09-07-2019, 06:34 PM	#7
sourdough Site Team Join Date: Feb 2014 Location: W. Texas Posts: 17,660	I use the blank tank flush all the time when we have the ability to do so. I understand "filling it up", dumping and filling again. The problem is that there are always residual "things" left in the tank when just pulling the handle and dumping...they don't come out (just run the black tank flush after every dump...there it is). Repeatedly doing this for the long term will cause problems IMO. Plus, running the flush takes all of 5 minutes. Sort of like "err on the side of caution" and there's nothing to it. In the old days there was no such thing and never did it. Nowadays it's there, it's easy and just another way to make sure you don't have just one more issue with the RV. JMO/YMMV I'm sure. __________________ Danny and Susan, wife of 56 years 2019 Ram 3500 Laramie CC SWB SB 6.4 4x4 4.10 2020 Montana High Country 331RL