THICK LAYEr BOTTOM OF POOL:| please asnwer help?

Okay i have an aboce ground 20 gallon pool.


There is a really thick layer of algae on the btotom.


I can't sweep it because then it just turns all the water green.


I was wonderwing what i should do to get it out.


I have poured a whole bunch of shock in it.


But nothing seems to work


Is there any suggestions to what else i cold try?THICK LAYEr BOTTOM OF POOL:| please asnwer help?
When you sweep it you need to turn your assembly to waste,that way the stuff you sweep out doesnt go back into the pool it goes down the drain(should be a handle that determines where the water flows too near the filter) .After this is done ,Shock it ,let the remainder settle to the bottom repeat sweep.


Then make your adjustments for ph and free chlorine,hardness etc...(dont forget to turn your handle back to filter)Theres usally a backwash option aswell remember to do this evry so often to help keep your filter from getting to dirty. Im assuming you mean 20,000 gallons.THICK LAYEr BOTTOM OF POOL:| please asnwer help?
Dump the pool and start again. Use chlorine to keep it at the correct level ( need a test kit) and also keep the PH at the correct level by adding PH boost or PH decline which ever you need. If you keep these 2 at their correct levels all will be good!