The Henchman wrote:
I'm in Zone 5 and It's still one month if not 7 weeks maybe before I
open my pool.

In the mean time I've 4 months of snow water and ice that has melted
on the top of my closed pool. Tons of leaves and other organic
debris in the water. gallons upon gallons that starting to stink a
bit now. It's all sitting onto of a tarp that separates the winter
water from the pool water of last September.

What effects would there be if I pump this onto my lawn or save some
in barrels for the gardening season which can't begin in these parts
until May 1st? Can this tarp water cause issues?

There ought to be nothing wrong with the water but I wonder if the amount
you can harvest to water plants would justify going to much trouble. If
instead the main aim is to remove the stinky pond by putting it on the
garden then go ahead.

David