Opening with extreme algae in spring

[vmbp]

What chemical should add first? Algae is way worse than I normally see in spring 16 x 32 inground
Normally I would add in this order
Metal out, shock,algaecide,clarifier...
Would I do same even with this dark green algae?

 

[Newdude]

Hey VM and Welcome !!!

We don't use any of that. We use a reliable test kit and liquid chlorine

Test Kits Compared
SLAM Process