Joka paikassa pistorasia..
- Jimly N. wrote about PVC Check valve in 2021:
Very good and reliable check valve which prevents backflow into my sump when turning off the pump during water change and cleaning. However, caution should be practiced when choosing correct size as the fitting is not universal size, i guess it’s italian/european sizing which needs adaptors to fit with usual sizes of pipes. Better inquire first to be sure😊