Adjsutment
Dear Bruce:Thank you for your note. The adjustably of your LasDrop depends on what style and vintage you have installed on your boat. Some have the ability and some do not. If it is an older model it may need a complete replacement. It was often explained to us that the plastic which was used, green, as the sealing surface would score and become saturated with fluids causing the unit to leak. At that point it was not cost affective to repair the units. Good luck. Sincerely, Kevin L. Woody