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Old 09-05-2011, 09:00 PM   #1
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Sani-Con not seeming to dump the tank

So first of all, we are pretty new to the RV world. On our first long trip. I have a Sani Con system that just does not seem to drain anything, or at least not enough. Just tonight I tried using it again, got a good flow, then nada... but tank still shows almost 2/3rd full. I know that if I hook up a regular sewer line it will drain it but then this kinda seems to defeat the purpose of using the Sani Con.

To recap, I put the Sani Con drain into the sewer line at the dump, open the solid waste and it seems to work only for awhile, then just stops. I can drain the grey tank fine using it, just the solid waste isnt draining. I guess it is possible that maybe something is on the sensor?

Any suggestions would be appreciated as this rookie is getting flustered


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Old 09-05-2011, 09:29 PM   #2
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Are you using plenty of water as you run the sani-con? The more liquid part will drain first then your left with the more solid effluent. I have a clear section that attaches to my drain before the sani-con hose. When I see things starting to thicken up, I stop the pump, and add water thru the tank flush for a couple of minutes to dilute things down and pump again. I do this (usually three or four times) until I get mostly clear water out. Then I drain the grey tank.

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Old 09-05-2011, 09:33 PM   #3
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I will try that in the morning, thanks for the quick reply!
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Old 09-05-2011, 11:52 PM   #4
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kandb3293.......Here's how I use mine. When I'm on the road and don't want to do a thorough flush, I drain the black tank until I see the fluid level in my (clear 90% elbow) drop and the SaniCon races. I turn the SaniCon off and pull the grey valve and let the grey tank fill the black tank (equalize) for a few moments. Once the equalization stops (visible through the clear elbow) I close the grey and turn the SaniCon on again. If you do this a couple of times (only takes a few minutes) the soapy water from the grey tank helps to lube the black tank.

When I get home, I connect a fresh water hose to the black tank flush line. You should have one in the utillity bay. I turn the water on first and let the water run for about three or four minutes. Turn the SaniCon on and let it drain the tank. Once the tank runs out of fluid, I close the black tank valve and let the black tank fill for about 5 minutes. I flush it one more time.

Tip.....When connected at a campground and the grey tank valve is open, the SaniCon is suppose to slowly allow the grey tank to empty by gravity. Particles that wash down the sink can sometimes clog the SaniCon grey water bypass and keep it from draining. If you open the grey tank valve and, turn on the SaniCon system and then close the grey valve for just a moment. You'll see the 3" drain hose suck in (constrict). This clears the bypass valve.

Just before we shower on the day that we're leaving, I close the grey valve so I can flush the black tank and hose with grey water.
Don & Mary
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2016 GMC Canyon 4WD Crew Cab
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Old 09-06-2011, 09:19 AM   #5
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NOthing wrong with the Sanicon, it is working properly.

The sensors are working normally too,, that is they show 2/3 full when the tank is empty.. (NOTE: is said normally, I did not say RIGHT or Properly)

You either need to blast the sensors with something like the Valterra Master Blaster tank rinser wand or put in SEE-LEVEL sensors, these work ... Properly.
Home is where I park it!
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