If sand shows up backing into tub... means break in sewer?
My toilet starts backing up so we flush with the bladder thing that forces water thru(sorry dont know what its called) removed the toilet and auger-to discover its leaking from the disintegrating collar thing. Replace all that. Now when doing laundry, sand and debris come up in the tub. I suspect theres a break,I want to get a pro to scope the length of old cast iron pipe that still exists under the slab.The house-to-street run was replaced w/ PVC about 20 yrs ago. How can sand enter a closed system? It would indicate a break ,right? Someone tell me Im right or wrong.Sorry for not knowing the terminology.