Help with Freestanding tub Installation

[IZ01]

We hired a GC to replace a jacuzzi tub in our bathroom with a freestanding tub. Rather than the drain connecting directly under the tub, the plumber (without discussing it with us) cut a hole in the side of the tub and ran the drain pipe through it and there is a gap between the bathtub and the wall with a vent pipe sticking up between them. None of this was ever discussed with us when we planned the job with our GC. He had the exact tub we were purchasing before we purchased and the tub was delivered before the project started. Is this typical/ installed correctly? Is this likely to lead to any issues with the structure of the tub?

Pictures are here:

 

[James Henry]

The drain coming through the floor should have been located underneath the tub but you would still have had to have the AAV in an accessible location.

 

[Sponsor]

 

[Terry]

Do you have pictures of the drain in the floor?
If there is a p-trap in the floor, the AAV is in the wrong spot.
If there is a p-trap under the tub, which I doubt, then it would work.
What is the model number of the tub you have there so that we can look up the instructions for it.

 

[IZ01]

Do you have pictures of the drain in the floor?
If there is a p-trap in the floor, the AAV is in the wrong spot.
If there is a p-trap under the tub, which I doubt, then it would work.
What is the model number of the tub you have there so that we can look up the instructions for it.

Thank you. Here is a photo of the floor opened. I’m hoping that although it’s unsightly it’s functioning.

 

[IZ01]

The drain coming through the floor should have been located underneath the tub but you would still have had to have the AAV in an accessible location.

Do you think the bathtub will be structurally sound?

 

[Terry]

Unless there is a way that the p-trap is vented that we don't see here in the picture, then I would have to say that they did it wrong. Without venting, when you drain the tub, it will siphon the trap.

The AAV behind the tub is doing nothing. They obviously don't understand how plumbing works. It's too bad a permit wasn't pulled for that job. That would have gotten it looked at before cover.

The vent for the tub trap is downstream of it, not installed at the top where it's just ornamental.

 

[Terry]

However, at least the AAV can be removed and used as a cleanout for the trap.

 

[IZ01]

Thanks everyone for the help. I will relay that the ptrap should have been before the vent.

 

[Terry]

"There was a tub there to begin with. It was probably vented and is still vented. "

This is likely true. If all they did was extend an existing tub trap, and it was vented before, then the AAV over the santee is an extra.
I would consider leaving it there as a convenient cleanout for future use. It doesn't hurt to have it there, and for snaking purposes, it easily unthreads for access.

I think it's time to fill the tub and take a warm, relaxing bath now.