Black Tank Flush Not Working.

logicsrealm · 05-15-2013, 11:22 AM

<div style="text-align: right;"><div style="text-align: left;">So I was installing my new SteadyFastbraces</span>today</span>and thought while I was rolling around in the grass and dropping parts of the underbelly, to check clearances, I ought to investigate my inoperable Black tank flush. The picture says it all. When you use 4 feet of hose to cover a six foot distance you are going to have problems.</span><div style="text-align: left;">
</span><div style="text-align: left;">It was a fairly quick fix. I picked up 4 more feet of hose, at the hardware store and spliced it in behind the skirting where the hose goes through the frame rail.</span><div style="text-align: left;">
</span><div style="text-align: left;">In researching the various forums in search of a solution to my San-T-Flush issue I had never run across this particular problem. So I thought I'd throw it up here to help the next guy out.</span>
<div style="text-align: left;">

</span><div style="text-align: left;">Hose to Black Tank Flush

TrainSafe · 05-15-2013, 11:39 AM

That should have been identified during the quality checks at the factory. They are working with their eyes open, right?

Hunter11 · 05-15-2013, 12:06 PM

I guess they are trying to save money any way they can. A nickel here, a dime there.....

mike06081969 · 05-15-2013, 12:24 PM

I had a 2011 Blue Ridge that they did the same thing on. Problem was, I didn't know it until it had broken the molded-in fitting off the black tank from road flexing. Required a replacement of the black tank under warranty. It's good you caught yours when you did.

harley · 05-15-2013, 12:47 PM

Hey . that 's something that should have ben caught by the "factory quality dept " ...lol.

Mine wasnt even tightened under the sink where there is a 90deg aerator (from the factory). My so called dealer didn't even check it . I noticed it spewing water into the cupboard under the bath sink when I tried it ......oh well .

logicsrealm · 05-15-2013, 01:02 PM

Harley, I had the same problem with the "hand-tight" connections for the vacuum breaker under the vanity. I found out there was a problem when I could see water running on the ground from inside the RV, the first time I charged the San-T-Flush.

logicsrealm · 05-15-2013, 01:13 PM

I also discovered today, in my travels under the trailer, that the steel strap that supports the freshwater tank was loose. The head had snapped off the self-tapping screw used to secure the Strap to the Frame rail. I had noticed when filling the fresh water tank last week that there seemed to be an excessive amount of 'bowing' of the membrane under the tank.

Hunter11 · 05-15-2013, 10:12 PM

Seems like lately they are just throwig them out the door with no regard to Q/C. It will cost them in the end.

harley · 05-17-2013, 01:55 PM

Hey logicsrealm ...Looking at your pic got me thinking about my low water pressure ....guess what ...? kinked hose on my pick up hose from the fresh water tank . that 2 in one week for us.

my pics is going to CR for a complaint ..if that will help any.

I'll post 1 pic here also .

harley · 05-19-2013, 04:31 AM

As a follow up to my last post , I checked the hose going into the black tank flush and it is KINKED just like my fresh water hose and 'logicrealm's black tank hose .
I fired off pics and a letter to 5 people from CR this morning .

no sense posting a pic here as it is the same as the one logicrealm posted.

Glenn996 · 05-27-2013, 09:44 AM

So we just took possession of our 2014 29SS last week. Was great until I used the black tank flush and water went all over the place inside the trailer. Worst was that it happened behind the wall where the converter is. Not a great first impression.

Should I remove the belly cover and look for a kinked hose?
Thanks Glenn

Hunter11 · 05-27-2013, 10:14 AM

Since there has been kinked hoses reported lately here on the forum on new units that would be the first place I would look. Your unit is new, make your dealer fix it unless you just feel like fixing it yourself assuming it is a kinked hose.

Glenn996 · 05-27-2013, 10:46 AM

Unfortunately, the dealer is 1800 miles away, so it'll be me for this. Fingers crossed its that easy.

harley · 05-27-2013, 11:11 AM

Hey Glenn : your dealer wouldn't be located north of Toronto , would they? If so , that is mine and they didn't test the flush and it was only hand tight under the sink where there is a 90 deg vacuum break/aerator.It spewed water all over under there. To make it worse, I also had a kinked hose where it connects to the tank . My unit was delivered to my home and they were asked numerous times to do a "perfect" PDI as I wouldn't be there.(5 hrs away)
Its easy to unscrew the screws and shine a flashlight inside to look . Be careful If there is a kink and you have to cut the black plastic belly cover as the wires just lay on it .

So check the tightness of the 2 fittings first ...

logicsrealm · 05-27-2013, 12:47 PM

I agree with Harley. Start with checking the tightness of the connections on the vacuum breaker. On our 25RB it's under the bathroom vanity directly behind where the outside San-T-Flush connection goes through the wall from the outside. I had the same problem with my black tank flush. I tried,unsuccessfully, to tighten it myself before having CW take a look at it. I had torqued the connections "a bit" with a small pair of pliers but not too much as I was afraid of cracking the plastic fittings. Apparently, I had been too skittish as when CW fixed it they said they just tightened it up to stop the leaking. So, if you're trying to avoid a trip to the dealer, I'd suggest verifying that it is the vacuum breaker connections that are leaking and tighten them up in increasing increments of 'shade tree torque' until the connections seal up. Something else to be mindful of is, I had seen, in my research, that on rare occasion the vacuum breakers were installed backwards/upside down.

Good Luck

mbutts · 05-29-2013, 02:14 AM

Unfortunately, this is a very common problem, but it's easy to fix.

Disconnect from power & battery, unscrew your converter from the wall and you'll be able to reach the leaky connector. Lay a thick towel down in the opening. Have a helper connect a hose and turn on the water. You'll be able to spot the leak pretty quickly.</span>

Glenn996 · 05-29-2013, 02:53 AM

Thank you - thats what I'm going to do this weekend. I actually bought from a huge dealership in Michigan - not N. of TO. The deal I got was incredible.

I'll keep everyone posted. They're sending me another vacuum breaker in case that's the problem.

harley · 06-02-2013, 12:12 PM

glenn . your dealer is probably either in Belleville or Grand Rapids . Looked there also as they are closer to me , but the guy near TO was only about 500 more as I could use my old one as a trade to save tax and he threw alot of extras in .
Looks like all dealers forget to check san-t-flushes ...

good luck

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