Most pool stores carry skimmer socks. If you have a pool store nearby it would be more effective to get a package there and start using it right away. Keep the pump running and keep filtering the dead algae in an attempt to avoid cloudy water. First we kill the algae via high FC levels until your overnight chlorine loss is 1 pp or less. Then we deal with vacuuming the debris, if there is any.

You can test your pH by adding 1 c pool water to 2 cups distilled water. That dilutes the bleach but doesn't affect the pH. Add borax as necessary.