BBC 1 Show 9 Jan 2019 19.00 40 mins in

[Rob Foster]

Which tank fills up first ..a good practical puzzle ...have a look on catch up tv. centralheatking

 

[Stigster]

Here's a link to the puzzle BBC One - The One Show - Marty's Big Brainteaser

 

[Stigster]

I reckon G

edit, I just realised that some of the pipes are blocked off. I'm going back for another look!

edit again. F

 

[Dan1706]

I think its F

 

[Harvest Fields]

I think it is F but the answer is at the top and bottom of the page

 

[johnduffell]

I built a scale model out of old header tanks but they all feel so in the end E filled up first

 

[johnduffell]

Typo... I meant to write fell not feel

 

[kris]

Quite simple