Customers, master shower was making a gurgling noise after you stop running the water, Upon arrival, I tested, and I heard the gurgling noise after the water finally drained, i’ll let the customer know maybe it was some hair in the P-trap that the water was fighting to get through that was given a gurgling noise so I offered them to run my snake and after I ran my snake, I pulled out a big wad of hair also treated The line with endure , To help fight with greases Also to help with septic tank Bacteria. After testing, the gurgling noise was done and all hair was removed and customer is very happy and satisfied