This is located in my alfresco. I can see the letters may be F T G S (and I S 100) not sure what that means!
I have an easement on my back yard if that has anything to do with this.
Hi @ppp
All places as far as I know in modern times have there concrete mushrooms to allow access to your sewer line on your property for clearing purposes and the like so dont make it disappear in a hurry.
I might be wrong but a reasonable guess.
Thanks mate!Anyway, I'm not going to do anything with that. Just because I'm trying to improve drainage in my backyard and wanted to find out what is that.
That is an access cover for the sewage line in your area. Please do not cover it with permanent flooring or attempt to open it.
If you need further assistance, please let us know.
Eric
Thank you @EricL