The chain: Air suction tower 'MK2'-> 'absorber MK2'-> 'polluted water purification' produces more water than required from outside, this will eventually lock down the system as there is no way to purge excessive water in the game. I also noticed it with Mk1. (It might also happen in MK3, IDK)
The ammounts I am using is:
8 Air suction tower Mk2
10 absorber Mk2 (with water + Oxygen absorption recipe)
4 chemical plant (with polluted water purification recipe)
+
10 chemical plant (with oxygen production recipe)
8 sparging column (with oxygen sparging)
no modules used.
In total, the plant consumes 2 water/s + 4 pollution/s. The final product is 6 fresh water/s + trace amounts of oil and other raw materials.
This heavy unbalance of in/out water causes the plant to lockdown quite often. I wonder if this is the intent of the plant. I could try to use this water elsewhere but it kills the purpose of the pollution purification plant if I need to add other factories (that pollutes) to consume the excessive water, specially If I need to place many of this plant over the map.