How do I adjust my pressure gauge?

[eric.e]

Tell me if I'm wrong, but I think I'm supposed to look, from time to time, at the gauge above my hot water tank (see attached photo) and adjust it so that the black needle is over the red one?

And I think I'm supposed to do this using one or both of the two black taps on the flexible pipe leading into (or is it out of?) the red tank. But how do I do it? Do I turn them both on at once, or what?

Thanking you in advance for your help.

Eric

 

[WHPES]

The pressure should normally be on 1 bar when the system is COLD. Open up the two black valve levers on the flexi hose until that pressure is reached. The hose should actually be disconnected at one end when not in use and be allowed to dangle.

 

[Puddle]

Not that it matters to much on this system as end dead leg but pressure release valve should not be positioned up side down as rubbish could collect and block,also is red expansion vessel supported ?

 

[Toddyplumb]

I like to open 1 fully and then control the fill on the other.
Agree with puddle that is fitted upside down

 

[eric.e]

Many thanks to the three of you for your help.

I've increased the pressure but one of the valves took a bit of opening and, once it freed, the flow went a bit faster than I expected, so the pressure is now at about one and a quarter. Will that be OK?

The tank is supported by a bracket on the wall, by the way.

How often should it be necessary to check the pressure?

Kind regards,
Eric

 

[eric.e]

p.s. Both black and red needles are now in about the same position on the dial (one and a quarter). OK?
Eric

 

[Puddle]

That should be fine but but as whpes says in future keep it around the 1 bar mark when cold,you can check the pressure as much as you like,put should not be topping up more than three times a year if system sealed ok,usually we top up once a year when we service the systems

 

[eric.e]

Thanks for that, Puddle.
Very helpful.