Scrape some of it of the pool and take it to your pool shop, it sounds like it might be black algae, the shop wit have something to kill it of this is really hard stuff to kill so its good that the pool is empty.
with a pool vacuum attached to your pump and filter available at most pool stores.
or most old fashion people use a pool cleaning net
To clean the outside of a pool, you can use soap and a scrubbing brush. Then simply rinse off with a hose or water.
There is no filter at the bottom of a pool. Perhaps you are looking at the hydrostatic valve which is there in case your pool is emptied and Will make sure that the pool wont float in ground water.
The best way to clean a pool with dried out leaves on the bottom is to fill the pool about an inch deep and allow enough time for the leaves to loosen up. Once the leaves are floating loose, take a wet and dry vacuum and suck out the leaves and water together.
how to clean spit in a pool
Have a look at a Dragonfly Super skimmer it doesn't clean the pool floor but stops so much dirt from going down that you will hardly need to look at the bottom.
try bleach. but be sure to clean it our good before you fill it back up.
with a vinyl vacuum cleaner. I get in the pool and make a whirlpool. Most of the light and heavy debris gets caught in the whirlpool. Then spend about 20 minutes with the skimmer and it's clean. It works best for me.
Well it depends if the pool is clean but if it is not clean it is a trashcan which means who ever owns that pool or public pool needs to clean it out, real good.
Maintaining Clean and Hygienic Pool water.It is of vital importance to keep water clean and free from the developments of algae, bather pollution and bacteria etc. If left untreated, these pollutants build up in the water to cause discomfort and risk of infection to the bathers.With regular dosing and testing, your pool water should be safe and fresh at all times.
I wanted to start having pool parties in my backyard. My pool looks dark and dingy. Would a pool service clean It?
You clean it.
Because salt is rarely perfectly clean, Just give it a vacuum and it should be right after that. it just crap that has setled on the bottom
At the bottom of the pool.