Originally Posted by Huib1965
Hey Chris... Thanks... I can only see one entry point to the hull (Stern side) How did you bond it to the GRP and I read indeed you need to fill it with an oil ? Weird ? is there no special oil you need to fill it with ? Also ? Are we saying that the Garmin one is the same as Airmai P79 which i think is more expensive ?
when we had decided best location, after lots of measuring and double checking with a spirit level ( yes, a spirit level
we jacked trailer up so that deck was level side to side and front to rear
) we cleaned hull and then sanded it back to get a good key on the surface, we then bonded the mount to the hull with silkaflex, which we left overnight to go off rock solid. we were advised to use olive oil in between the transducer and hull so as to provide a permanent path through to the water, it's worked so far for us, but I guess there are other fluids you could use just as good as olive oil