Ok so our wetback is leaking and given its in auckland our fire is not on all day during winter no never really helps with water heating when needed. Any way give the cylinder and wet back are 30 years old we are lookint to switch to instant hoe water ( gas ) so thoughts where remove the old cylinder etc after gas install is done. this will leave the wetback system my thoughts where its eay enough to remove the guts of it and weld over the inlet and out let holes anyone see anything wrong with doing this ??