Question about the Brown Pyramid of death

Biggyniner wrote:
Hi All,

Since I'm new to all of this I was hoping to get some advice regarding full hookup sites.

I was always under the impression that if I had full hookups I could just leave my valves open. After reading about how the liquids will run off and the solids will remain behind I realize that, that is a bad idea.

So my question is what is the point of full hookups? Most of the State Parks here in Oregon say to not dump a full tank at the site sewer connection but instead at the dump station. What do you all do?

The point of full hook-ups is so you can dump at anytime and any amount you want to. Yet, if you are at a site that does not want you to dump a whole tank at one time...it's easy, just dump part of the tank, the close the valve, then open it again...as many times as you feel is needed.

If you feel you have a build up...just fill the black tank with water, add 1 cup of liquid dish detergent and let it sit, preferably going for a nice long ride then try dumping to see if the water runs clear. Repeat as often as you like.

The optimal plan is to have and use an onboard tank washing system which will allow you to completely flush the tank after each dump.

I fully suggest doing this with the gray tank too.I also agree that the gray tank valve should not be left open all of the time. Dump it the same as you would with the black tank (when close to full) Even though dish, shower and hand washing water do not have a lot of "solid material" it does contain sticky soaps and some bits of food which may also build up in your tank.