when to dump

[luberhill]

Ok black and gray are empty but if we take a few weekend trips and use the toile and shower etc...how full should we have the tanks before dumping ?
I know you do black first then gray,,,but do you run water in either tank to clean ?? If so how do you do that?
Thanks for helping a rookie

[NMDriver2]

Flush when you have enough water to carry the slurry out of the tank.

If it has only been used a time or two on a weekend trip I will add about 5 gallons of water before I flush the tank.

I always start with 3 or so gallons of water in the tank or at least enough to have a couple of inches of water on the bottom before adding solids.

You want a slurry to flush out not chunks and wads. 😉

[Ralph_Cramden]

Some of the tank cleansing rituals used on these boards are great morning reading material while I sit and dump.

Personally I dump when I leave a campground be it 1/4 full or 3/4 full. About the only time I use the almost worthless tank flush connection is at the end of the season as a tank filler to flush before I put the cover on for 4 months. I do not worry about if half a turd remains in the tank between trips.

Not long ago I watched a guys flushing ritual for about 45 minutes at a state park while his wife yelled multiple times from the truck window "make sure you get it all out Al".
Great entertainment is where you find it. I was literally 400 yards away up on a hill and this woman was like listening to nails on a chalkboard. She was worried about a turd being left in the tank and would have none of that foolishness, and she let Al know it. If I was Al I think I would have found the ranger and filed for divorce on the spot LOL.

[MarkTwain]

luberhill wrote:
Ok black and gray are empty but if we take a few weekend trips and use the toile and shower etc...how full should we have the tanks before dumping ?
I know you do black first then gray,,,but do you run water in either tank to clean ?? If so how do you do that?
Thanks for helping a rookie

Every was a rookie at some point! Empty the black tank when 3/4 full. Depending if your RV has a built in back flush connection, I connect the water hose to the black tank and turn the water on. Then I open the black valve as long as it takes to empty. Then I close the black valve and let the water run until I get about 15 gal. in the tank to wash down any remaining materials. Then flush again. While the black tank is filling up I open the gray and Kitchen/shower tanks (different RV's have different tank configurations) until they are empty, then close both valves. Then I open the black tank again until it is empty. I then fill the black tank with about 5 to 10 gallons and close the black valve. Then disconnect the water. You never want to leave the black tank completely empty. You could end up with the famous "pyramid" and a plugged up black drain. Another way to back flush your black tank is to pour about 4 gallons of H20 into the toilet if your RV does not have a built in black flush. there are some commercial liquids that will also help keep your black tank.

[rexlion]

When you feel the urge. 🙂

[Turtle_n_Peeps]

Anytime I'm hooked up to a sewer, I dump. If I roll into a full hook up and stay the night I dump the next morning. Done it that way for more than 30 years.

I fill the bowl up about 5 or 6 times and flush. I go outside and pull the handle. As soon as it's empty I close the handle and open the gray valve. As soon as it's empty I close the valve and disconnect the hose and wash it out with water and put everything away. Done.