| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| danbeavers | "Go here to see the results from experimentation. " | Read more » | over 6 years ago | |||
| danbeavers | "Perhaps a better analogy would be a survey rod. It is designed to be read under poor conditions. Perhaps there is some other scale that is easily..." | Read more » | about 7 years ago | |||
| danbeavers | "The screw valve should BE a needle valve. I suggest a needle valve so that there is a large range of flow control. Most other valves are mainly o..." | Read more » | almost 8 years ago |