Hi Wen,
Thanks for your response.
It is hard to clean the algae without disassembling the distro plate.
Because the algae are covering the acrylic surface. Maybe you can use a small soft brush to clean it from the top hole, and drain the water from the pump. If that you only need to disassemble the tube from the pump to the bottom radiator.
Since there is no drain fitting in your loop, so please be careful when you drain the system. Also, you can clean the filter as well.
After you reinstall the cooling system, we advise you to use our coolant BPTA-CMCD500, which can avoid the algae, and fill the coolant as much as you can.
Also, you can add a drain fitting in the bottom radiator.
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