check at a Plumbing supply , for this, [ball check ]
i also have had good louck by pushing a Tennis ball in to mine then replacing the top plate.
Acts like a stopper,
Install a one way check valve in the line from the house to the sewer.
Install a Backwater valve
You hire a plumber to put in a one way sewer drain valve.
I am facing this same issue with a basement installation and plan to use a backwater swing check valve, available thru McMaster-Carr on the web.
no
If the existing sewer line is lower than basement grade (does it go into the basement floor and out of the house?) you can just connect in to the existing drain. By code, sewer lines must have a slope of 1/4 inch per running foot, meaning that raw sewage will run AWAY from the main plumbing stack of the house. If the sewer line is ABOVE the level of the basement plumbing fixtures, you will need to purchase and install a pump check-valve, and tank to install any plumbing below the house sewer line. If you have any questions, contact a licensed plumber to find out the needs of your home.
Have a plumber snake out your drains.ANS 2 - Install a flapper valve section on the sink drain pipe so water can go down but not up - cheap and very easy to do.
No
I take it that you are mounting it out side, put the shut off valve in side, with a drain on it,
If there is no drain valve at the radiator you can drain the system at the drain valve on the boiler
That depends entirely on your house. Many basements never flood.
since check valve holds water in the line can a hand pump be installed between the check valve and water tank?