On Jul 21, 4:23*pm, "
wrote:
Hi all,
* *No rush for answers on this one, but I'm sinking... I found a bit
of water in the bilges and put it down to something benign, but on
inspection, found a blister on the paint inside the hull, which when I
burst revealed a ~2mm square hole in the hull on the bottom of the
boat. I've plugged it with gaffer tape, rubber mats and bits of wood
for now, but has anyone got any neat ways of fixing this without
taking it out of the water (boat is a 20 tonne wrought iron/mild steel
dutch barge, and a proper repair job would be ~£700)?
* I'm thinking a bolt with a big rubber washer on both sides and
liberal use of silicon sealant. I'm hoping the rot is very localised.

cheers

Jim
UK

Hi Jim,

Blistering paint in the bilge pump is often caused by stray current
which causes electrolysis corrosion. If you have these signs then
chances are your boat is being effected and unless something is done
about stopping or deterring the stray current the corrosion to the
hull won't stop.

I have found a product that can stop this altogether and can protect
the boat. Go to http://www.seabis.net and you can find out the cause
and effect and all about the product- Angeleika1