Spray attachment for Dometic Toilet

The reason the sprayers are connected after the water valve (on vacuum breaker stub) is so that full water pressure is not on sprayer at all times......only when pedal is depressed fully when flushing toilet.

Just like how kitchen sink sprayers are connected.....no pressure on sprayer without faucet open.

The shutoff on sprayer handle is not designed to stop full line pressure and can drip/leak.

Just be careful of water pressure.

Add a little extra water to the bowl before "dropping the bomb" and you won't need a sprayer. :W

Thanks for the info folks, didn't know the foot pedal had to be down to operate the sprayer. Makes sense though. If I went the direct route, I'd add a shutoff.

big buford wrote:
I had installed mine on the nub, only had low pressure when holding down foot pedal? Ended up using a sharkbite fitting T'ed in the 1/2 inch supply line with standard kitchen spray attachment. Full blast with the sprayer now, no need to step on pedal, works great.

I'm curious, have others obtained full pressure spray without stepping on toilet when hooked to the nub? Maybe I did something wrong?

I chose your direct method as well. I have a lot more pressure that way. My turd blaster gets the job done!
Sharkbites are a wonderful thing.

Well, I learned something. I need the hand spray kit WITH the vacuum breaker (385319054) as my vacuum breaker does not have the stub for the hand sprayer hose. The cheaper 385311124 kit is just the hand sprayer and hose and is probably intended as a replacement part if you already have a sprayer. In summary, there are 2 vacuum breakers used; 1 for use with sprayer and includes stub for sprayer hose, and 1 that does not have the stub for the sprayer. Thanks for all the input folks, I went ahead and ordered the kit of Amazon.