Floor drain

[MtnArch]

We have seventeen traps that could dry out. I have to remember to run water in six of them because they seldom get wet. There’s nothing unusual about our home. If we had a floor drain there would just be seven to remember. The point is that a trap primer is not required. There is a built in reminder. If you have a wife it comes with enunciation.

And I imagine it's a LOUD enunciation!

 

[Wecline1]

We have installed a floor drain in a residential bathroom, but as part of a barrierless, walk in shower, where the floor slopes to the drain in the shower. The entire floor and walls are water proofed.

 

[ICE]

I understand that in Europe, some people construct the shower floor to be the ENTIRE BATHROOM so that any mishap would not damage the area below the bathroom.

Takes care of keeping the trap's water seal

What do you think?

I have seen quite a few roll-in shower stalls and a few were the entire floor but the usual situation is way less than that.


This was from yesterday. The home is 75 years old and there is a raised foundation. I am filling in for an inspector that is at the ICC convention in Louisville so I was only asked to approve the Redguard.





This was sent to me as part of a virtual inspection during the Covid lock-down.

 

[Keystone]

My CBO is against any type of oil in a trap due to flammability concerns. He said that if someone installs a floor drain in a bathroom, since it is used everyday, the occupant can pour water in the drain every so often..or put a floor drain cover.

I can appreciate the concern. Quick search and I copy and pasted this statement which is consistent with other website information.

“Mineral oil can catch fire fairly easily, but is not technically a flammable liquid, according to OSHA standards. It has a flashpoint around 335 degrees Fahrenheit (168 Celsius), which does not qualify as flammable, even though it certainly can catch fire”

Maybe it’s best to use a trap guard such as Oatley, Proset, Sureseal or one of the other code approved manufactures.

 

[e hilton]

If the oil in the trap reaches 335* … i submit that you have a bigger problem. And you're only talking about 2 tablespoons of oil.

 

[Yikes]

Vegetable-based oils are used all the time in waterless urinal traps. They’ve been approved for use without worry about flammability.

 

[ICE]

Vegetable-based oils are used all the time in waterless urinal traps. They’ve been approved for use without worry about flammability.

Ya and they stink anyway.

 

[steveray]

Vegetable-based oils are used all the time in waterless urinal traps. They’ve been approved for use without worry about flammability.

Just make sure they don't touch any CPVC...

 

[hardroadz]

We have installed a floor drain in a residential bathroom, but as part of a barrierless, walk in shower, where the floor slopes to the drain in the shower. The entire floor and walls are water proofed.

Yes, building that as well. Very large walk-in shower with drain in the middle. I think it's a good way to go if you have the space.