Leak in Airing Cupboard Tank

[Zig168]

The pipework around the hot water tank in the airing cupboard has developed several leaks after a chemical flush.

It's an open vented system.

Any ideas on controlling or fixing the leak?

Should I turn off the red valve (pic 1) that has a leak next to it and rundown the hot water?

Pic 2 a vertical pipe has also developed a leak at the top. Black water is dripping out.

Unfortunately there is still black water in the system after the chemical flush.

Any help appreciated. Thanks

 

[Ben-gee]

You need to get back whoever did the flush.

 

[ShaunCorbs]

Have you tried closing the air tap a bit more eg the brass by the towels

 

[Zig168]

Have you tried closing the air tap a bit more eg the brass by the towels

Yes I switched it off but the leak next to the air tap continued.
There's now 4 leaks in that area. Not sure of the cause.

 

[Zig168]

Thanks for all the responses. Managed to sort the problem. The vertical pipe (bleed valve) needed tightening up.