Replacing Drain Pipes Under Kitchen Sink. Replace kitchen sink pipes step one take the old drain apart. The p trap is a nifty little invention that has made hygienic plumbing possible but it does tend to collect debris.
The kitchen sink p trap which is the under sink elbow pipe connected to the drain is filled with water. This video shows how to assemble drain pipes under a sink. 3 main problems explained.
If you re planning to replace a standard sink with a deep basin sink you may need to.
Remove existing piping and drain before you start cutting and removing pipe you will want to place a bucket under your sink drain. Remove existing piping and drain before you start cutting and removing pipe you will want to place a bucket under your sink drain. Secure the drain inlets to the sink tailpieces. The reason it s there is to prevent sewer gases from wafting into the kitchen.