How to make room to fit a rat flap?

[blackcloud]

Hi all

Does anyone know possibly how I can fit a rat flap in here. The pipe is 6" but the chamber above only allows access of about 4". We have a 6" rat flap?

Hoping someone can help please?

 

[fixitflav]

What's a rat flap? I've heard of a cat flap, but they're not usually installed in manholes or the like

 

[Nige F]

there should be a shaped cover for the elongated hole

 

[nameisme]

there should be a shaped cover for the elongated hole

Can I ask what is a shaped cover for the elongated hole?

 

[Mottie]

Can I ask what is a shaped cover for the elongated hole?

A cover the same shape as the elongated hole.

 

[ChrisJP]

Calling this a "rat flap" implies that it can open to allow a rat to pass through it (like a cat flap). Correct me if I'm wrong, but I suspect you don't want that?
In which case, you'll need a permanently attached cover for the elongated hole as Nife F and Mottie suggest.

 

[fixitflav]

We have noticed this thread goes back to Oct 2024?

 

[MNW67]

Calling this a "rat flap" implies that it can open to allow a rat to pass through it (like a cat flap). Correct me if I'm wrong, but I suspect you don't want that?
In which case, you'll need a permanently attached cover for the elongated hole as Nife F and Mottie suggest.

I think it is supposed to work the other way. Lets waste and water out but stops rats getting up the pipe.

 

[Madrab]

Are you sure it's a 6" clay and not a 4"? Is there no other full chamber that you have access to the open end? If not then you would need to cut that access section out, fit the valve in the upstream end and then remake with plastic and/or fernco's.

The covers never seem to last, only ever seen 1 that wasn't in bits.

 

[Hugh Jaleak]

If Rats are escaping out the open hole, then fit a new cover, e.g. https://www.cwberry.com/glen-castings-sealing-plate-and-frame-oval

 

[dilalio]

Probably been inundated by rats by now!