Leaky Drain Cock Advice Please

[NorthernLad]

I have three problems but will post separately.

Drained system yesterday and am left with a leaky drain cock.
400 ml in 16 hours so need to fix.
The pipework this one is attached to is boxed in, as you can see from photo.

I am not familiar with the innards of drain cocks but anyway I will have to drain again for other reasons - is there a fix that does not involve fitting a new one for the moment?

 

[ShaunCorbs]

Didn’t you install a new washer after you used it ?

Plumbright DOC Washer Type A & B (Pack of 10) 787095

PlumbRight washer types A and B are designed to replace worn washers in many plumbing applications.

www.cityplumbing.co.uk

Type b you need

 

[NorthernLad]

Didn’t you install a new washer after you used it ?

Plumbright DOC Washer Type A & B (Pack of 10) 787095

PlumbRight washer types A and B are designed to replace worn washers in many plumbing applications.

www.cityplumbing.co.uk

Type b you need

Didnt see the drip until after refilling - Didnt even cross my mind.
Assume this is 'good practice' to renew washer after use.
Thanks for the reply Shaun.

 

[ShaunCorbs]

Yes every time you open

 

[NorthernLad]

Yes every time you open

Doh! Lesson learned - Thanks.
My other drain cock is slightly different design to the first, the srew-in is not as wide as the first photo - not leaking, but do I assume that will be a type A?
Second Photo attached.

 

[ShaunCorbs]

Correct