Shower Question

[sirpurrcival]

Hey Folks

My Class A shower has the faucet with a connection for the shower sprayer built into it. So here is what seems to be happening when I use the shower.

When I pull up on the knob (the diverter) Water moves up through the shower sprayer as it should. When you push the diverter knob down, water that is caught in the hose comes out of the connection where my shower sprayer screws on to the fixture. Now in most cases, I wouldn't really care too much about the water coming out that way but it seems as though water then finds a way to penetrate through the mounting holes for the fixture. I have tried removing and resealing the fixture but is this normal behaviour for the sprayer and diverter? Picture enclosed.

[Rick Long]

Yes it is... it has an anti syphon valve.

[sirpurrcival]

Is this designed to prevent some kind of back flow into the fresh water system?

[radams]

Originally Posted by sirpurrcival

Is this designed to prevent some kind of back flow into the fresh water system?

Exactly. The logic is that the end of the hose could potentially be submerged in something unsanitary and thus the potential for backflow exists.

[Gary RVRoamer]

You could replace the whole thing with a more sophisticated faucet and shower valve if you like. Standard bathroom plumbing fixtures will work fine.

[TXiceman]

Anti-siphon or vacuum breaker. It allows the hose to drain and it can save your bacon when you winterize and forget to drain the shower hose. If you stop seeing water come from that point, the valve is plugged up and needs to be fixed/replaced.

Ken