answersLogoWhite

0

You may not have a backflow preventer in the main line. This prevents anything coming back from the main line. It may be coming from your neighbors above you on the line.

User Avatar

Wiki User

18y ago

What else can I help you with?

Related Questions

What are drains and sewers?

A drain flowing into a sewer either combination or sanitary or storm depending on what type of drain is being used such as storm drains or waste and this does not include Soil lines


How to Rough in sink drains and supply lines?

With a roughing book of course as not all fixtures use the same roughing


Can you use a toilet drain for a regular drain?

As far as I have read in numerous code books there was nothing about regular drain.There are storm drains, sanitary, indirect , and waste lines BUT no regular drains so I reckon that the answer would be no


How many subs in ice hockey?

A backup goalie, and three backup forward lines and 2 backup defense lines. 14 subs and 20 players in all, plus a couple extra for injuries and special teasers.


I have a 1983 Mercedes Benz 300sd turbo diesel There is a rainwater leak that comes in either from the sunroof the windshield or some other opening How to I stop the leak and what should I use?

The leak may be from clogged Sunroof drains. Others have said that you can use compressed air to clear the lines to have them drain properly.


What is a sentence with lines?

lines between us were clear. We never crossed them.


Are fault lines caused by earthquakes?

No, fault lines cause earthquakes


Why are horizontal lines shorter than diagonal lines?

just cause


What situations call for aseptic technique?

Typical situations that call for aseptic measures include surgery and the insertion of intravenous lines, urinary catheters, and drains.


Are power lines sparking a common cause of electrical fires?

Yes, power lines sparking can be a common cause of electrical fires.


Tune power lines?

You question is not clear. Be more precise to get an accurate answer.


Will power lines cause health issues in horses?

Power lines have been known to cause anxiety in horses and prevent adequate sleep.