Lake Alkalinity and Boat issues

Hello WW,

I recently passed on a lakefront property and regret it. I've since found out that the lake has a very high alkalinity and a friend who lives on the lake has told me about issues his SAN 230 as well as a friends 22 VLX. They said that a sensor on the SAN was plugged up as well as a thermostat on the VLX being plugged up.

Now the previous owner of the property I passed on said his Moomba never had any issues related to the water. I know the easiest fix is a saltwater package, flush kit etc. I'm just curious if anyone knows how very alkaline water affects boat internals.