Replacing your Bayliss cylinder in your roof vent

Posted on March 7, 2018 | Categories: Build greenhouse, greenhouse, Greenhouse Tips, greenhouses


Do you have a greenhouse roof vent that is no longer opening or not opening enough?   Over the years, the piston moving through the seals gradually wears the seal material away, allowing a gradual seepage of wax out of the cylinder. This reduces the pressure within the cylinder and needs to be replaced.    Here is a 3 minute video on how to replace the cylinder: