Main drains are our #1 emergency service problem so we recommend a preventative maintenance program if you know your main line gets clogged every year. Be pro-active and get it cleaned before it backs up. Call Today! Secondary lines are kitchen and laundry lines. They are our second leading service call always remember to flush lots of water when using the disposal. We can clean any drain call now. Secondary lines are kitchen and laundry lines. They are our second leading service call always remember to flush lots of water when using the disposal.