3 inch (76mm) to 65mm Guttering Adaptor?

paperclap

Hi all,

In the middle of having our gutters done.

We've old 3 inch round downpipes. We're having new 65mm square downpipes fitted.

Where the downpipe enters the ground, an adaptor will be needed. But, can't seem to find one!

Anyone ever found one? Ideally in white 

Thanks!

grumbler

laurencewhymark said:

Hi all,


Where the downpipe enters the ground, an adaptor will be needed.

What exactly does it 'enter'?  Downpipes don't go far under the surface.

And what sort of pipe is 3''? I am no expert and see only cast iron.

stuart45

Are you connecting to 110mm pipework below ground?

FreeBear

Having the downpipes disappear in to the ground is a bad idea in my opinion. If you get a blockage, it is near on impossible to clear unless there is a rodding point close by. Far better to fit an interceptor gully so that debris is trapped before it becomes a problem. Whilst they are not particularly cheap, having to dig out underground drainage to clear a blockage gets expensive.

[Deleted User]

Hi,

something like this?

 

paperclap

FreeBear said:

Having the downpipes disappear in to the ground is a bad idea in my opinion. If you get a blockage, it is near on impossible to clear unless there is a rodding point close by. Far better to fit an interceptor gully so that debris is trapped before it becomes a problem. Whilst they are not particularly cheap, having to dig out underground drainage to clear a blockage gets expensive.

These are great... but can't find them in white, nor square!

Will have the balloons at the top of the downpipes too. Not as good as the interceptors... but still something.

paperclap

frugalmacdugal said:

Hi,

something like this?

 

Yes, that... but at the right size!

paperclap

We've this on one of our downpipes.

Old (clay?) pipe thing. Top is covered in mortar, which would accept a 3 inch downpipe.

If the whole thing was removed, I image it would go into the 110mm underground pipe... so builder has suggested simply leaving in place.

stuart45

That's an old salt glazed pipe, and is probably a bend. Salt glazed pipework was normally enclosed in concrete. The white adapter would fit inside that hole as it's smaller. 
Do you have a combined drainage system?

paperclap

stuart45 said:

That's an old salt glazed pipe, and is probably a bend. Salt glazed pipework was normally enclosed in concrete. The white adapter would fit inside that hole as it's smaller. 
Do you have a combined drainage system?

I think we do have a combined drainage system actually. Was speaking about this with the builder yesterday.

From a birds eye view (see my sketch), it would appear it is a combined drainage system.

What do you think?

stuart45

You probably do have a combined system. Easy to tell if you open up one of the manhole covers and put some water into the gutters.