Black tank problem

Thank you to all that responded, I will use some of your suggestions to correct my problem.

hot water (about 15 gallons), 1/4 cup liquid laundry soap per gallon, 2 hours (maybe 3) drive on a winding road with some bumps and other means to jiggle, vibrate and shake up the tank.
makes a nice brown soup, take it to a dump station, (or town hall)

Hot water works best when you do any cleaning, that's proven, laundry soap will break down most types of dirt.

I have no connection to this. You might want to try this product. I have just received two 32 ounce bottles of it but haven`t tried it as of yet. Here is the URL http://uniquemm.com/products/rv-digest-it-holding-tank-treatment

Why not get one of those wands from Wally world and blast away in there?

The one i used is a valterra that just twist on the same way a hose hooks up.

Brandon327 wrote:

joelc wrote:
If you have the valve closed and liquid soaking in the exit pipe be very careful when removing the exterior pipe cover. I once had my RV serviced and the service center evidently opened the valve and then closed it without dumping. By the time I had emptied from my first camping trip there was a large pressure build up in the pipe due to heat and the contents brewing. I got it all over me with a burst of power. So, don't let it sit for days.

That is a mess right there. My last camping trip I don't know if someone pulled a handle at home or some leaked through the valve but when I went to pull the cap off to put the. Hose there was a considerable amount of fluid behind it. It almost got messy real fast. I have since put a valve on the end next to the cap so if one of the other valves is pulled it won't pressure up the cap.

That sounds like a good idea. I am going to look into that one.

joelc wrote:
If you have the valve closed and liquid soaking in the exit pipe be very careful when removing the exterior pipe cover. I once had my RV serviced and the service center evidently opened the valve and then closed it without dumping. By the time I had emptied from my first camping trip there was a large pressure build up in the pipe due to heat and the contents brewing. I got it all over me with a burst of power. So, don't let it sit for days.

That is a mess right there. My last camping trip I don't know if someone pulled a handle at home or some leaked through the valve but when I went to pull the cap off to put the. Hose there was a considerable amount of fluid behind it. It almost got messy real fast. I have since put a valve on the end next to the cap so if one of the other valves is pulled it won't pressure up the cap.

If you have the valve closed and liquid soaking in the exit pipe be very careful when removing the exterior pipe cover. I once had my RV serviced and the service center evidently opened the valve and then closed it without dumping. By the time I had emptied from my first camping trip there was a large pressure build up in the pipe due to heat and the contents brewing. I got it all over me with a burst of power. So, don't let it sit for days.

When we leave the stick house, I put a small bag of I c e , in the black tank, at the first stop do the dump thing, yep works every time for us. And make a habit of too. Ok goodeal. Now it's all happy-camping

Does the black water tank drain at all?

If it drains, but there is a pyramid of c##p and TP remaining, then all of the above suggestions will work.

If it won't drain at all, then it will need to be back-flushed.

If that fails, seek professional help.