Main Eco Elite - needs repressurising!

[poisonorange]

Could someone help me repressurise my boiler?
It's a Main Eco Elite.
There looks to be some pipes instead of a flexible hose but only one of the valves opens. Which ones (and in what order?) do I turn these and do I need a screwdriver to open the other valve closer to the connecting bit of pipe away from the wall. Sorry if I'm not explaining this very well - I'm new to this.

Untitled

• poisonorange
• 17 May 2015
• 1

 

[GuessMan]

The two black taps nearest the bottom of your photo need to be turned together. Use grips if they are tight.

 

[poisonorange]

Clearly my worry was not turning the valve with too much force because I wasn't sure what I was doing. All it needed was some brute force. Thanks!