THICK LAYEr BOTTOM OF POOL:| please asnwer give support to? Okay i have an aboce ground 20 gallon pool. There is a really...

Okay i have an aboce ground 20 gallon pool.
There is a really thick branch of algae on the btotom.
I can't sweep it because then it just turns adjectives the water green.
I was wonderwing what i should do to draw from it out.
I have poured a whole bunch of shock surrounded by it.
But nothing seems to work
Is here any suggestions to what else i cold try?
How past the worst is it to run...
Answers:    When you sweep it you need to turn your assembly to waste,that method the stuff you sweep out doesnt go back into the pool it go down the drain(should be a handle that determines where the river flows too near the filter) .After this is done ,Shock it ,let the remainder settle to the bottom repeat sweep.
Then get your adjustments for ph and free chlorine,hardness etc...(dont forget to turn your bar back to filter)Theres usally a backwash option aswell remember to do this evry so habitually to help keep your filter from getting to dirty. Im assuming you scrounging 20,000 gallons.
Should I replaced the river of swimming pool...
Dump the pool and start again. Use chlorine to keep it at the correct level ( obligation a test kit) and also keep the PH at the correct rank by adding PH boost or PH decline which ever you need. If you keep hold of these 2 at their correct levels all will be righteous!