what's the switch next to the black tank fill connection?

[Burtonair01]

Hey all, I just bought a 2011 3814 Heartland Cyclone Toyhauler and can't figure out what the switch does that is next to the black tank fill/flush connection. I thought maybe it was for a sprinkler inside the black tank but when I turn it on I cannot hear anything happening, any ideas on what this switch is for or does?

 

[jnbhobe]

I was thinking it was a switch for the water pump but you should hear it run.

 

[danemayer]

It might be a 2nd switch for the water pump. Try turning it on when not connected to city water and then run some water to see if the pump comes on.

 

[Burtonair01]

Thanks for the replies, I will check that out today!

 

[recumbent615]

that is what it should be - it is there to allow for control of the water pump while winterizing the rig. so you do not have to run into the rig to turn on/off the pump.

 

[JohnDar]

I guess I don't follow the "run in and out to winterize" idea. When I do mine, I stick the siphon tube (extension) into the bottle of AF, set the valves in the UDC to winterize and go inside. Turn on the pump and run each faucet valve until the pink stuff comes out. If it sputters, it tells me that the jug is empty and needs to be changed. And I open my low point drains to get AF from them, too. I do this after blowing out the lines with air at the UDC city water inlet.

 

[Burtonair01]

Yep, that's what it was, another water pump switch! Thanks!

Admin: balance of post moved to new thread in CY area