Murflynn

I would have thought that it is uncommon to have sufficient clear access to insert a large drip tray underneath an existing installation. Assuming a narrowboat, it should be possible to fully (or stitch) weld a few flat bars 100mm deep to the base plate to contain the oily bilge. If stitch welded then a good oil-resistant sealant along the joint should suffice.

Travelling back from Malta by road in 1977 with a load on the roof-rack I stopped near Naples for petrol. All my documents, passports, travellers' cheques and money were in a folder which I left on the roof of the car while I paid. I realised I was running out of cash so I drove off and after 10km I pulled off at a large hotel, going up a winding hairpin hill for 2 miles. I looked for my folder and realised I had left it on the roof. In a panic I drove back expecting my documents to be strewn across the autostrada. Amazingly they were lying on a hairpin where they had slid off the roof - untouched. Did I feel like a dipstick - most certainly yes, especially in such a lawless region!

Perhaps you can explain what it is about the design in the barging.co.uk website that you do not like. It seems to me to be a fairly typical replica dutch barge design.

isn't that what the towpath is for?