Cast iron keel problem! Advise needed

[timot]

Hello All,

I really need your advices or suggestions from experts...

Last year in May 2022, I bought a Dufour Gib Sea 33 from 2000 and during the survey, the surveyor just noticed that my boat needs to be sanded till gelcoat and do the antifouling from scratch. (Previous owner did the antifouling by himself and did it very badly...)

Yesterday I took the boat off to do antifouling, and while observing the keel, I saw a crack and with little force the part just came to my hand. (Please see the photos..)

I am now truly worried if this is a big problem or not. For now, the paint company did only one layer antifouling and covered the broken part with epoxy. Asking me to come in October after the summer and fix things properly. I am also attaching the photos of fix...

I am not sure what to do now, according to people in the yard the boat has an electrolysis problem and it resulted in this and advicing me to do a check when the boat is again in the water. And I dont know what to do, my biggest horror is that the keel goes off one day while sailing....

Could you please have a look at the photos and advice what to do! Thanks from now...

I also add photos from the bilge, there are 11 stainless steel screews holding it, the setup: 1-4-4-1-1