Solar fluid system - looking for someone to do a fluid change in the Lucan area (otherwise DIY)

If you installed it yourself then you should be well able to DIY it.

It's pretty much the same thing as first filling, except you obviously drain out the old stuff first.

Plenty of good videos around if you need a quick refresher on it.

You'll never beat your DIY price, shop around for the solar glycol there can be a massive variation on prices for the same thing.

Personally I don't bother with the pump station and just use a pump attachment for a cordless drill to refill and pressurise the system, it does help a lot to have a 2nd pair of hands to work the drill for those few minutes.