Customer called about a clogged kitchen sink drain. There is an exterior clean out for the drain. Offered pricing for an attempt to clear, customer accepted. Opened clean out, pushed the 100 machine in and felt a blockage at 8’. Began using the cable and worked the line out to 60’ feeling blockage around 18’. Had the customer turn on the water at the kitchen faucet and letting it run for 15 minutes. Sink is draining well, no signs of blockage. Reinstalled clean out cap. Cleaned work are. Thank you for choosing CPI!