Stopper for Soil junction?

[mike2016]

I've an inspection chamber with two inputs, 1 of which isn't connected to anything but keeps tracking stones/rubble into the junction. I bought a few 110mm stoppers but these are too big to fit, I think it's a smaller size just under 4" in diameter. Is there an older standard around or what size should I be aiming for that would be common from around 25 years ago? Thanks! 

[Nickfromwales]

You'll probably just have to make this up with cement, and bench it in. Prob best at the height of summer when the ground is driest.

[Conor]

I had this as well, for some reason inspection chambers only seem to come with half the stoppers you normally need. I just nround the concrete I was setting the chamber on, in through the open ports and troweled back at an angle. They are all above the main channel so it's more about keeping stuff out of the chamber, rather than in.

[Dave Jones]

https://www.screwfix.com/p/mcalpine-push-fit-drain-blanking-cap-black-110mm/4331v

 

Weird they dont fit for you, push a short length of 110 pipe into the socket then stop that.

 

Edited March 6, 2023 by Dave Jones

[mike2016]

I think the internal diameter of the chamber gulley is smaller than the 110 pipe diameter that each junction then connects out to. Good idea about the cement. I think this run actually is meant to connect to the washing machine drain but no pipe was ever laid. Builder shortcuts so it's probably all draining into the ground or there's a slight chance its cutting over to the kitchen basin outlet but I'm doubting it. Thats about 5 meters of concrete to dig up to fix if I was of a mind to. Anyway, best seal it I think so concrete it is! Thanks.