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Old 06-18-2013, 10:37 PM   #1
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Sani tank flush

Hi all,
Anyone have an idea why the sani flush won't work? I have attached blackwater hose, opened lever, hooked up hose to the sani flush, turned water on but water doesn't seem to go in. I checked, the screen isn't plugged, stumped. Thanks for any ideas.


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Old 06-19-2013, 10:09 AM   #2
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Hi and welcome to the forum.

The San T Flush usually has a check valve (often located at the hose connection) which commonly fails and produces the symptoms you describe. These valves are there to prevent any chance of black water flowing from the tank back into the park's fresh water system.


Rick, Nancy, Peanut & Lola our Westie Dogs & Bailey the Sheltie.

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Old 06-19-2013, 11:15 PM   #3
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Here is the contact information for the manufacturer, if you don't have it.


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Old 05-16-2016, 04:08 PM   #4
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Sani flush

Our Sami flush is not working and someone posted a note about a check valve with a link to the company. It seems the company doesn't exist anymore.
Any suggestions on what to do?
Heidi and Paul are MostlyOK
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05 Jeep Unlimited
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Old 05-16-2016, 04:17 PM   #5
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If it's Swan Industries, maker of the San-T-Flush, here's their manufacturer website:

RV Plumbing Parts, Bend, OR | Swan Industries - Welcome
Tom and Karen
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2016 Fleetwood Flair 31W
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Old 05-16-2016, 09:41 PM   #6
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I've noticed that if you have too much pressure it won't work properly. I start with a low pressure and increase it gradually u til it stops, then back down again.
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Old 05-16-2016, 11:34 PM   #7
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Was'nt the check valve; the holes in the tank sprayer were clogged with guess what..
Mine was removable at the black tank side. Cleaned it up and drilled out the nozzle holes a couple sizes larger. Siliconed back in; works fine.
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Old 05-17-2016, 05:53 AM   #8
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I use mine regularly to keep the "you know what" from building up and clogging the system.

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