Homebrew PCBs

On 18 Feb 2008, at 21:47, Philip Pemberton wrote:

> Leon wrote:
>> 'Washing soda' (sodium carbonate) used to be very common in the UK,  
>> it was
>> used with soap for washing clothes before detergents were invented.
>
> So I've been told... I've been trying to track some down for ages  
> (it's
> apparently good for neutralising ferric chloride), but nobody seems  
> to sell it
> any more.

Sodium Carbonate Decahydrate on sale in the local Sainsbury's  
supermarket - "Washing Soda". I use it to soften the water a little, =  
less soap powder.

-- 

Cheers

Derryck