Can I make a DIY flush valve for a urinal?

[Markf111]

I'm getting a ceramic urinal for really cheap and I don't want to spend $150+ for a flush valve. It's just a man cave urinal so doesn't need to be fancy. It's a washout urinal so from my understanding liquids should just flow out freely down the drain. I could just throw some water down it if I want, or I could install a spigot above it. But then I had the idea that maybe I could simply connect a water hose to the top spud with an inline cut-off switch. Would this work for a typical urinal? Or do the top spuds have some kind of mechanism prohibiting flow unless activated by a flush valve? In other words, if I were to pour water into a top spud, would it flow down into the urinal? I'm not a plumber so I have no idea how this stuff works but I could put it together if it's that simple. The urinal I'm probably getting is a TOTO UT104E#01.

Thanks!

 

[Terry]

Flushometers have vacuum breakers built in. That is normally to prevent a cross connection.

 

[Sponsor]

 

[Markf111]

Flushometers have vacuum breakers built in. That is normally to prevent a cross connection.

Thanks Terry. I'm not sure if I totally understand, so between the top stud of a urinal and the little holes where water comes out, there's some kind of vacuum or seal preventing flow until it's activated by the flushometer? I can't force water through with a certain PSI? Is there any way I can jerry rig it to work the way I'm wanting?

 

[Plumber69]

I wouldn't be to concern about a Urinal cross connection. Ive seen people use a ball valve. They would crack it open for a bit

 

[hj]

The whole urinal is an "air gap". Central Brass and many other companies have urinal flush valves which operate with a lever to control the flow.

 

[Tuttles Revenge]

Just checked out "urinal flush valve" on eBay.. lots of options for under $100 that are better than a direct connection or a 5 gal bucket flush system.