If field applied for general plumbing applications, the critical level of the 289 shall be 6(152mm) above the flood rim.
If field applied for general plumbing applications, the critical level of the 289 shall be 6(152mm) above the flood rim.
如果现场应用在常见的管道应用上，则289的临界面应该位于高出地面152毫米的地方。