Personal Occupation

[LizzieW]

Oops - I meant watertight.  As I said I got interrupted by the builders 

[Skoosh]

My father was a Caulker/Boilermaker, nothing to do with ship or wooden hulls though, railway workshops.

Skoosh.

[danuslave]

It's caulker. His job was to make the joints in a ship airtight.

I think I'd prefer my ship watertight

Just as a matter of interest -

if you're testing for something being airtight (inner tube for example) you put it into water and look for air bubbles

So does that mean that airtight is 'tighter' than watertight??

Linda

[behindthefrogs]

There again if you are testing for something to be water tight you fill it with water put it into air and look for water droplets. 

[danuslave]

There's always one!   



So you don't know either?

[Colin Cruddace]

The scientific answer is that water molecules are much larger than those of the constituent gases of air, so that air could pass through a watertight seal but water could never pass through an air tight seal.

A typical example is having a bath, air can get out but water doesn't get in 

Colin

[CarolA3]

My father was a Caulker/Boilermaker, nothing to do with ship or wooden hulls though, railway workshops.

I think it says 'Iron' in brackets after 'Caulker' - so this chap was quite possibly working on ships' boilers.

And we should ignore that Colin, he's just talking rude

Carol

[kazzza]

Thank you every one for your suggestions & thoughts.. some put a smile on my face 

Regards
Karen