My septic is individual clogged beside White chunks of something? Water started coming up from my septic so i dug it up,...

Water started coming up from my septic so i dug it up, and opened it. To find big white unyielding chunks. The chunks seem to be clogging the septic. I own no idea what the chunks would be. My laundry runs on a seprate flash so I dont believe it is laundry soap. I also use liquid wash detergent for my dish washer so it couldnt be that. Any one have any suggestions?
Juicy couture..?
Answers:    Could be compacted toilet tissue...
Laundry Detergent?
Maybe tampons or grease. Please don't detail me you pour your grease down the drain.