So to recap, we had the options of either spending a few hundred pounds having the worst pits filled with weld, some new shoes attaching and re-launching on the first Monday in July, but wouldn't know how long those repairs would last before we were back in the same situation, or we could spend a few thousand on the full overplating job but were told from the outset that wouldn't be possible for a few weeks. However, the marina's July crane-out wasn't fully booked so the boat could stay out until the first Monday in August.
As I removed side panelling and lifted or cut out the flooring I found that all the paving slabs were wet and some of the flooring had white mould growing on the underside. Quite clearly, through condensation, rainwater seepage (I have discovered a couple of leaks around windows and damage behind panelling) and maybe even the start of some slight weeping through the hull, it has been permanently damp below the floor for quite some time, particularly in the back half of the boat. We found another suspicious looking pit on the other side of the hull, also about an inch above the base plate, I tapped it with a nail and it went straight through.
As I scraped, wire brushed and shoveled sheets of rust away it rapidly became apparent that option 1 had expired and that most of the damage has been coming from the inside.
When he has had some spare time in between other jobs, Steve the welder has ground off anodes and made a right old mess of my new blacking below the first rubbing strake.
He has compounded the felony by cutting a sodding great big hole in the back end, because if there's any slight air space between the new steel and the existing skin tank, it's not going to cool the engine.
Last Monday the steel was delivered and the first section of the new base plate was levered, hammered, jacked into position and tack welded.
On Tuesday that was properly welded across the front end and the second plate offered into position, jacked and tacked.
The chair is only to stop people from walking into it and cutting themselves off at the knees. We are thinking of leaving the wings for extra protection in locks and to see if we can get her up on the plane.
A couple of side panels were also cut and tacked into position.
On Wednesday the new back plate was positioned, jacked and tacked ....
.... and most of the other side fixed in place.
My main concern has been the bathroom, which I really did not want to have to strip out. If you remember (or go back to the first couple of pages of this blog), I insulated below the gunwales with two inches of Rockwool, but I had also painted the inside of the hull with a domestic bitumen paint. The Rockwool should be inert, I have previously tested it by holding a blowlamp against it, but the paint was a worry. Well it seems to bubble, melt, smoke and stink a bit, but hopefully behind the Rockwool it is starved of oxygen.
I removed some insulation after a test weld and it shows some scorching, but hopefully that's as far as it goes. Steve seems happy with that, but I won't be happy until he has finished welding the sides.
On Thursday he did most of the final welding along the chines and they fitted and bent the tricky bit at the pointy end.
And by Friday they had had enough, or did something else, somewhere else.