Here is the pics for the equipment room, I think many friends will feel disappointed, it is very dirty and low tech
1.The sump and the skimmer
The skimmer is a Bubble Magus 800, this one is the prototype actually, from the founder of Bubble Magus. Although it is looks bad, but this skimmer has great quality and has been used for many years (older than this pool)
The sump is very simple, mostly for this skimmer only, and you could see two white pipe on the right, these pipes were connected with a titanium tube to control temperature by cold water or warm water.
2.The RO/DI system
An industrial grade RO/DI system and a tank on the left to prepair salt water for water change (we use Instant Ocean salt)
3.Sodium bicarbonate and Calcium chloride
Sodium bicarbonate and Calcium chloride for KH and Calcium, it is very easy and cheap to get analytical grade chemical materials, so many aquarist in China is using dosing pump + chemical materials instead of Calcium Reactor.