Floor drain size for overflow and pan?


  #1  
Old 10-11-17, 10:44 AM
Q
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Floor drain size for overflow and pan?

As I understand it you can't plumb the floor pan or pressure relief pipe directly into plumbing.
If I install a floor drain, what size pipe should it be?
I tested a pressure relief valve, it doesn't seem like a 1.5" waste pipe would handle the flow to prevent a flood?
 
  #2  
Old 10-12-17, 09:15 PM
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Putting a floor drain in seems difficult when there isn't one there already. Would have to rip up the floorboards?
 
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Old 10-13-17, 12:56 AM
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The water heater will be in a closet about 10ft away from the outside of building so it's also difficult to install a pipe to outside. Can it be tied into a roof drain/downspout?
 
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Old 10-13-17, 06:33 AM
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What's under that closet, crawl space, basement, first floor rooms?
Any drain pan I've used has a 1" drain.
 
  #5  
Old 10-13-17, 02:09 PM
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Another closet on floor below and below that another closet and below that the basement crawl space. I could connect a flexible 1" pipe and run it down to the basement sump pump but it's a long way down.
does 1" vinyl tubing exist or is 1" pvc best?
 

Last edited by qwertyjjj; 10-13-17 at 04:04 PM.
 

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