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canesfan · 03-19-2017, 11:08 AM

You could have blown out the anti-siphon valve, but it wouldn't take that to flood your trailer. Did you use a regulator? The water will just fill the black tank until it overflows out the toilet. As for the anti-siphon valve, it's probably under the sink or behind a "door" in the shower wall. If you can access behind your water panel you can usually trace the PEX from the black tank flush up to where the "valve' is.

Edit - others type faster than I do.

03-19-2017, 11:08 AM	#4
canesfan Senior Member Join Date: Jan 2014 Location: Tidewater Area Virginia Posts: 1,271	You could have blown out the anti-siphon valve, but it wouldn't take that to flood your trailer. Did you use a regulator? The water will just fill the black tank until it overflows out the toilet. As for the anti-siphon valve, it's probably under the sink or behind a "door" in the shower wall. If you can access behind your water panel you can usually trace the PEX from the black tank flush up to where the "valve' is. Edit - others type faster than I do. __________________ 2014 Raptor RP300MP w/ Rear Patio Party Deck, Folding Side Ladder, 6 Point Level Up, Carlisle Radial Trail HDs 2004 2500HD D/A CC SB - TTT Mirrors, Prodigy BC, 18K Pullrite Superglide, NEW Fuel Injectors 11/2015 (ouch)