Basement floor drain. Where does it go?
I don't know if there was a code for such things, so the answer can be unambiguous. The house was built in the 80s, southern Ontario.
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Outside, on your house's sanitary service connection.alpovs wrote: ↑ Thinking about this drain brought up another related question. A backflow valve is recommended for the whole house sewer. My house doesn't have it, I think. If I were to install it I thought it would go on the main sewer pipe in the basement. The house has one widest sewer pipe going into the floor and other more narrow pipes connected to it. I assume this is it. Now, with this basement floor drain connected to this sewer pipe under the floor the back flow valve wouldn't save the house from sewer backup flooding from this floor drain. Where is a backflow valve installed normally?
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Yeah, they dig down and install it on your service connection.
Feb 23rd, 2021 5:35 pm
Thanks! Do you know if it ever was a standard to install backflow valves? In particular in the 80s. I always assumed the house doesn't have it because I don't see it anywhere but maybe it's underground installed by the builders.SubjectivelyObjective wrote: ↑ Yeah, they dig down and install it on your service connection.
That way your foundation drains/weepers are protected as well.
Its more common in combined sewer areas, or just poorly designed ones.
Edit: Ill just add that its not uncommon to install it inside, but most of what I have seen has been outside on your service connection.
Feb 23rd, 2021 6:29 pm
It is highly unlikely that they would install a backflow preventer. Maybe in the past 10 years in very specific areas it's been required, but for the most part it's not a requirement nor something developers would want to pay for.
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