A municipality needed to seal off a leaking water main valve in order to decommission the system.nbsp They decided injecting polyurethane grout into the valve would be their best option in this situation.nbsp Although this is not a common application, it will provide the desired outcome.nbsp A hole was drilled directly into the valve body and an injection packer was inserted.nbsp Hyperflex, the NSF61 approved polyurethane grout, was then injected.nbsp The Hyperflex migrated throughout the valve and sealed off the leaks.
