Bubble noise in toilets, septic tanks just drained
Started about 2 weeks ago, both toilets, back to back rooms, started making bubbling noises, then would not flush. Let sit water in bowl goes down, let sit even longer I could flush a couple times normal then would start backing up again. Tub and sinks and everything seem to drain fine no problem. Tried plunging no help. Had both septic tanks drianed. Seemed to work just fine no problems until today( 2 weeks later). Wife called said here's bubbling noise in toilets again. She took a shower had wash going and dish washer( multi-tasker I guess). Toilets won't flush again. Septic tanks shouldn't already be full again should they? Even if lateral lines collapsed? Both times had this problem it was raining outside. But lived in this house 2 years and seen a lot more rain than this and no problems. Already replaced all the guts in toilet but like I said both toilets making bubbl noise( haven't actually seen bubbles though) and won't flush. Any advise? Clogg in line amybe?