To have a perfect fit you have to shave about 1mm of the extremity of the raw water hose and place the collars in a way that they do not interfere with the lid.
Preparing in advance the impeller for a rapid exchange if necessary.
The impeller is not symmetric the front has a thread to put the extractor if necessary so you can preposition the impeller with the paddles facing in the right direction.
The impeller is ready, note the special impeller Johnson lubricant on the axis and O ring as well as the impeller and pump inner surface.
The speed seal life is now installed. The impeller that is prepared for the quick exchange can be fixed if neccessary in less than 5 minutes with no tools. Don't forget to close the raw water seacok during the operation.
I think this is a great product and Alex Parker the UK conceptor has a good CRM.
Have a good sail.
Denis
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