HELP ME!! ^^-Is this drain-pipe(or hole)?-picture include

I'd seriously doubt it is any sort of drain. It is waaaay to small to drain much of anything and I don't know of any building code anywhere that allows for a drain to be less than 1.5" in diameter.

My guess is that that extra pipe was put in when the cement floor was poured and then later someone decided that either didn't need it or the location was wrong and it was just left ther ein place.

Re: HELP ME!! ^^-Is this drain-pipe(or hole)?-picture includ


The first picture is of a faucet for raw hard water if you need it in the future. You would use it for a softener installation. Unless there is another one of them and a stop valve between them.

The second picture may be for the drain line of a softener but that isn't how a softener loop drain is plumbed so I say no to using it unless you but about 3 gpm down it for 20 minutes and see if it takes that flow without backing up but... even if it does, I'd want to know where the water is going before using it and decide if there is a future problem .

I wonder if it might be a vent of some kind (to let air out, not to take water in).

Thank you for those kind reply.

I guess, that's not a drain pipe. I have a question, if I don't have a drain hole at basement. It means I can't install water softener, even though I call the plumber?

Thanks again for your help.

A softener will drain up an over to a drain line above. You will need a trap and an air gap.
If it were me, I would contact a local independent or franchise H2O dealer for a professional installation.

HTH ~