Originally Posted by jackdmcnabbjr
Thank You FORD. Does the built in flush do a good job on your unit? It appears from the attached picture that I can only flush the black tank and not the grey.
I guess it works fair - well, I can not see in the tank.
I use lots of water and the blue stuff from Walmart.
Camco TST Blue Enzyme Toilet Chemical, 64 oz - Walmart.com
I notice a little extra stuff coming out but nothing major.
Gray tank get some soapy water when in use other than that I do nothing extra.
No solids are washed into the gray and I have not noticed any odor.
I have not heard of a gray tank with a flush but that does not mean they are not out there.