It looks like the pictures below. I have dug up for new drains and water. The plumber has connected everything and now it's my job to cast it back. I just want to make sure I'm not making a total mess.
The floor is in an old boiler room, and the only requirement is really that it should be possible to walk on. We are not going to do anything else with it, so it will be a raw concrete surface just like the rest of the space.
I'm thinking the following: fill with a load of gravel up to the top edge of the drain pipe. That will get me roughly where the old casting starts. Since there's a storage tank weighing 2-3 tons there, I think it makes sense to cast "solid" where it is, i.e., not less than it was before?
I'm not sure if the pipes can be fixed more neatly before casting?
The wall is an old log wall where the old casting lies directly against it (either cast in the 50s or earlier). Should I do something against the wall or just proceed as it has been? It's dry underneath.
Casting against existing concrete, I'm thinking just water + slurry? Coarse concrete.
The floor drain. I just prop it up with gravel and some concrete to fix it at the level and then cast around it? As far as I know, there is no slope in the space otherwise, so maybe it's silly to do it locally at the drain? This one is just for a utility sink, and there is another in the room to handle pressure overflow in the heating system. So do I just set the edge of the drain at the same height as the surrounding floor?
Replace the floor drain with one that has an extra outlet and connect the pipe to it instead, the one hanging above.
Otherwise, just fill it as you intended.
Yes, now that I see the pictures, I'm wondering if I shouldn't fix that a bit. It turned out a bit too much like "we'll do as it was before"... Otherwise, half of my life is focused on challenging old traditions and trying to think new, so why not here...
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anders07 said: