Many Thanks Craig .

Thats exactly what I required ,
I sourced 3/8BSP bosses and have formed a new tank bottom .

Hopefully Tomorrow I will get chance to weld it all together .

Trying to minimise distortion .

Notice that Your tank has a small square welded on the bottom ..upwards of the boss on Left side ..Mine doesnt have this ?
What would it have been for ?

email (option): s.foster11@blueyonder.co.uk

Hi Steve,

It's a thin metal (tin?) numbered plate. Not welded. Maybe someone else knows its significance...?

Hi Steve,

It's a thin metal (tin?) numbered plate. Not welded. Maybe someone else knows its significance...?[/quote]Perhaps a quality control tag ?

email (option): s.foster11@blueyonder.co.uk