The OEM black tank sprayer is a joke... Piece of fixed plastic with some holes in it...
The other part in the built in black tank flush that's a joke and WILL flood your Montana is the anti siphon valve that's in line with that
Image of OEM black tank sprayer...
I don't use mine and haven't used any built in sprayer in decades... I use the Valtera King flush and clean out my black and both gray tanks and I dont worry about flooding from a cheap plastic anti siphon valve..
YMMV
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