If the drain lines in your home have poor venting, water rushing down the drains will pull water from nearby P-traps. The ...

If the drain lines in your home have poor venting, water rushing down the ... one of the first places you'll notice the problem is in the toilet. If you have air bubbles that rise up through ...

Among problems found by the inspector general: sewage spills at Mount Rainier, corroded plumbing at Big Bend and leaking septic systems at Everglades. National parks are struggling with an $877 ...