Does my washer drain even have a p-trap?

[eselick]

Hi
I leave in Canada and I don't think p-trap's are required in washing machine drains. I'm getting intermittent sewer smells coming out of the drainage pipe and wonder how to check to see if there even is a p-trap. The drain pipe is about the same height of the washer.
Any ideas?
Thanks

 

[phishfood]

I am not knowledgeable on Canadian code, but I would be very surprised if there were not a trap required on any attachment to the sewer system.

I know that Florida code does not allow a laundry to drain onto the ground, it must drain to the sewer/septic, but it is done sometimes.

You could tie a weight firmly to a string and lower it down the pipe until it reaches bottom. If it comes back out wet, you probably have a trap on it.

 

[stevemachine]

I can vouch for Canadian code and I know for 100% fact you need a trap on any directly connected drain to a sewer system.

 

[eselick]

Thanks for the ideas and clarification.

 

[eselick]

Now I'm wondering if it does have a trap, why am I getting the sewer smell out of the pipe?

 

[stevemachine]

Sometimes sludge builds up in the traps. If its not accessible you could use an enzyme. That'll usually help eat away at some of the sludge. I know that I've saw plenty of p traps underground up here for laundry drains. I don't think it's allowed anymore but there are some still in service.