I have a bhr single vertical releaser. On slow flow days releaser starts to raise float to dump and causes a air leak which leads to icing on float rod.Also when this situation happens flapper to releaser manifold will close. If woods is tight releaser will sit like this for sometime before woods level drops enough to dump some sap and finish dump cycle. I have already adjusted white plastic up on lid of releaser to get a good seal on oring. This releaser was at 24" of vacuum all season so low vacuum wasn't a issue. I think only option maybe to make a new piece that the rod slides through with less clearance so the rod leaks less. Any suggestions are appreciated.