In the recent past, we have been adding additional sealants to the various joints on the syphon. Work initially started at the top pipe joints, as they carried the greatest vacuum loads.
Today, the section down into the lock chamber was removed so that, not just the overhanging joint could be safely accessed, but also made the upgrade of two other joints easier to work on.
By mid afternoon, the section had been restored and the syphon run. Unfortunately, there was no improvement in performance. There are a couple more unmodified joints down besides the factory wall, so they will receive attention next time.
