How to choose a sewer shut-off valve for vertical installation?

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Consult with some specialist on site to see your sewer. There are a lot of shut-off valves, for different pipes. It is not always possible to take into account all the nuances. I can advise the masters from Pom Waterproofing https://www.pomwaterproofing.ca/back-water-valve-installation/. Call them home and they will pick up the most suitable valve on the spot.