NMHunter51 Posted January 17, 2015 Report Share Posted January 17, 2015 Hello Everyone, I am having a problem with discharging my black tank. Here is the problem. My black tank with not release any waste when my travel trailer has been parked for more than a few days. It will only release when I have towed my TT around for awhile. Once I have towed The TT, the Black tank empties just fine. Any suggestions for a fix be greatly appreciated. Link to comment Share on other sites More sharing options...
Chris-n-Dennis Posted January 17, 2015 Report Share Posted January 17, 2015 Sounds like a possible obstruction in the tank. When you can empty and do, the obstruction is the last thing nearest the valve each time. By driving around you've "shuffled" the deck so to speak and the obstruction has moved away from the valve. Recommend doing a thorough flushing of the tank, then inspect to see if you can identify what the obstruction is. Chances are, one of the drill-out holes was inadvertently left in the tank. Its that or possibly an accretion ball. Only reason I know this is I've been there with my grey tank. edit: now that I've seen your electrical problem, disregard this until you fix that as noted by the posters in that topic. Berkshire XL 40QL Camphosting and touring Our blog: cndtravels.blogspot.com Link to comment Share on other sites More sharing options...
skp51443 Posted January 17, 2015 Report Share Posted January 17, 2015 If it is an electrical valve problem you can probably use jumper cables or a battery charger to get enough power to the valve motor to dump. First rule of computer consulting: Sell a customer a Linux computer and you'll eat for a day. Sell a customer a Windows computer and you'll eat for a lifetime. Link to comment Share on other sites More sharing options...
Big Z Posted January 18, 2015 Report Share Posted January 18, 2015 Do you use a digester? Do you have a black tank flush? 1. If your tank is empty ?? (as far as you know anyway) close the valve and put 10 -15 gallons HOT water down the crapper!.. let soak awhile!... Repeat if/as needed. 2. I've been using a product called Happy Camper http://www.1-happycamper.com/index.php for 10 years now!.... You didn't say what you used for a digester, But I can recommend this one. 3. With your TT level or tilted slightly towards the drain valve...Empty the black tank..>>> A clear fitting that attaches between the drain and sewer hose would let you see what's coming through <<< If it's paper and solids, I'd HOT water 10-15 gallons again, soak and shake the tank, (stop & go drive) then level and drain again. 4. Another product I can recommend and also been using the past 10 years is a Sewer Solutions https://www.youtube.com/watch?v=dsdfUXoOxrw And here's the routine after the tank is drained, flushed, and valve closed! 1. Charge the system!... Fill the crapper bowl with water and dump three times (3-4 gallons)... I add a scoop of Happy and mix in the third bowl 2. Add an extra bowl after a #2 3. Never Ever!! use baby wipes! 2000 Holiday Rambler Imperial 40' DP 2015 DRV 38RSSA 5th wheel 2004 M2 106 MDT It's What You Learn, After You Know It All!... That Counts!! Link to comment Share on other sites More sharing options...
Alie&Jim's Carrilite Posted January 18, 2015 Report Share Posted January 18, 2015 Nada-Thing is probably right. If you can empty the tank after moving and call a plumber that has a long camera snake you should be able to remove the cutout. It's pretty common for the assemblers to let them drop into the tanks. You don't say if this is a new RV, or new to you RV, but you can always have a dealer deal with it. Alie & Jim + 8 paws 2017 DRV Memphis BART- 1998 Volvo 610 Lil'ole 6cyl Cummins Link to comment Share on other sites More sharing options...
jjwicklund Posted January 18, 2015 Report Share Posted January 18, 2015 It could be a simple problem of not using enough water when flushing,and or too much paper is being dropped down the flusher. Water is your friend with black tanks. John 2017 F350 King Ranch DRW 6.7 4.10 B&W hitch 2017 DRV MS 36RSSB3 Link to comment Share on other sites More sharing options...
3_nomads Posted January 28, 2015 Report Share Posted January 28, 2015 Chemicals do NOT work as well as do probiotics. Look them up. We use only Scott septic safe TP. A Flush King is also a good idea. The only genuine one I know of is sold by Camping World - unfortunately. This is our third rig - we've learned this is the best - for us. We are full timers. Link to comment Share on other sites More sharing options...
nana25k Posted January 28, 2015 Report Share Posted January 28, 2015 I'm going with an obstruction. In 2 rigs and 8 years fulltime we don't do any thing to it. Lots of water. Always wait until its FULL to dump. Never leave your sewer valve open while hooked up. Flush well with water after dumping Ron & LindaClass of 20072000 Monaco Diplomat 2005 Honda Element"Do what you can, with what you have, where you are" Theodore Roosevelt"We can't control the wind, but we can adjust our sail""When man gave up his freedom to roam the earth, he gave up his soul for a conditioned ego that is bound by time and the fear of losing its attachments." Link to comment Share on other sites More sharing options...
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