Toilet clogged video of basement leak. Help!

Came home, toilet clogged no poop or TP in sight. used the plunger flushed and toilet slowly drains. I heard an air bubble come from the sink when I was plunging. Then i went into the basement and there was water leaking from where the pipe passes through the floor. In the bathroom there is no water on the floor that i can see. i have not removed the toilet yet. i secured the water to the toilet but there is still water in the tank and a little bit in the bowl. what could it be? This is a very old New England home with an unfinished basement that gets very little residual heat from furnace.

I guess it is an old home! It has a small section of lead pipe just below the toilet.
Likely a plugged drain line.
Is there anything else that's draining into that cast iron drain line that's running slow?
Public sewer or septic system?
Remove toilet, snake it from there. If successful, replace toilet with a new seal.

Be VERY careful when working with the lead closet bend and collar. If your not careful you can easily punch a hole in it. Where does the lead go to, a cast iron stack? I would work backwards toward the toilet and pull toilet as a last resort.

You're going to have to pull that toilet regardless needs a new Wax Seal possibly might even need a new flange pull the toilet and snake from there

Diehard said:

I guess it is an old home! It has a small section of lead pipe just below the toilet.
Likely a plugged drain line.
Is there anything else that's draining into that cast iron drain line that's running slow?
Public sewer or septic system?
Remove toilet, snake it from there. If successful, replace toilet with a new seal.

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It is old 1883. The 2nd floor sink is constantly backed up and drains slow. ( I took it all apart and cleaned out a bunch of sediment that was in the trap) but it is still slow draining I believe it is slow because the drain piping has to go about a foot with only a 1/4 inch decline into an 80 year old cast iron pipe that was at one time 1-1/4" interior diameter but is now barely 1/2" after all the growth and decay.
Public sewer that has a good 2 ft decline, across 15ft of main piping as it exits the basement.
I had problem with the shower in the same 1st floor bathroom clogging so I removed the lid from the old drum trap and cleaned that out then installed a filter under the drain to catch hair and it hasn't clogged since.

I will remove the toilet tomorrow when i get home from work and snake the pipe. If I remove the old lead bend I assume as long as the cast iron is good I can use modern replacement piping i.e. rubber pipe or PVC.

Your sewer is more than likely plugged. Hopefully you have an outside cleanout. Or, and don't smack me for this cause it's illegal according to city code. A "tile hole". Meaning a hole in the top of the sewer pipe to access the sewer line. Regardless, cleanout needs installed and a new wax ring.

24" of pitch in 15' is to much. You dont want to much pitch because water will leave solids behind. 1/4" per foot is fine. I think it is time to start replacing some of that cast iron drain you can get to in the basement.

CT18 said:

24" of pitch in 15' is to much. You dont want too much pitch because water will leave solids behind. 1/4" per foot is fine. I think it is time to start replacing some of that cast iron drain you can get to in the basement.

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Is that "too much slope theory" code?
Larger pipe sizes do the same thing to the velocities. No restriction on that.
It sounds like it makes sense but one can say the same thing about using low flow volumes.
Plus I think the place it becomes most important would be for toilets.

Yes 1/4" per foot is fine.

EDIT: -These 2 items are slowing things down! What was I thinking??? I guess I wasn't.

I believe it is in the code. The inspector can always play the poor workmanship card. I will ask the inspector if it is officially in the code.

CT18 said:

I believe it is in the code. The inspector can always play the poor workmanship card. I will ask the inspector if it is officially in the code.

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I'll bet you a cup of coffee it's not in any code. But I've been wrong before.