<human>:  How do I fix a clogged drain pipe?
<bot>: To fix a clogged drain pipe, you will need to start by locating the clog. You can do this by running hot water and using a plumbing snake or using a plunger. Once you have located the clog, you can then use a drain cleaner to dissolve it. In some cases, the clogged drain pipe may need to be dismantled, snaked out, or replaced entirely. If you are unsure of what to do, it is important to seek professional advice.