Hello, has anyone here repaired a leak on the ballast tanks of a Jantar Standard 3 glider? I don't mean washing the tanks with paint but accessing the inside of the tanks to repair a leak.

I would like to know how the tanks are constructed. Are they separate tanks installed in the wings or do the spar and wing skins form the tank sides?

I am considering buying a Jantar with leaky ballast tanks and am trying to assess how big a job it is to make them water tight.

Hoping you can help.

regards

Andrew