Tide Mill engineers replace penstock guides
sballard2024-01-11T10:04:49+00:00Tide Mill Engineers at work Running an old Mill takes a man down a pit I'm sure we've all had trouble with our penstock from time-to-time? Sometimes also called a gate valve, the Tide Mill's penstock controls if, when and how much water leaves the mill pond and flows under the mill wheel to turn it. It is held in place by guides that make sure the gate is well seated (doesn't leak) on the flange behind it. The guides have angled shims that push the gate backwards against the flange as it closes to improve [...]