Assuming this is a pool that is dismantaled each fall and reset each spring, I would use Natural Chemistry Cover cleaner. This product will clean the dirt as well as treat with a citrus smell. Hooks to your hose and sprays on. Mike
You could try spraying straight bleach from a spray bottle, and then rinse with either reverse-osmosis or distilled water.
One pound of ascorbic acid per 10,000 gallons.
If it was working ok before you lined it and you have no problems removing the liner you should have no problems.
The best cleaner for a vinyl fence is a mixture of water and mild soap, such as dish soap. This solution is effective in removing dirt, grime, and other stains without damaging the vinyl material. Simply mix the soap with water, apply it to the fence with a soft brush or cloth, and then rinse it off with water.
If you have water behind your vinyl in ground pool liner, you should first lower the water in the pool to normal levels if it is over-filled. Make sure that the vacuum pipe is clear, unclog it if it is not. Once it is unblocked let the water from behind the liner flow out.
clorox..and a wirery bruch
The water and salt cleaner is effective in removing tough stains and grime due to the abrasive nature of salt and the cleaning properties of water.
To fix a detached vinyl liner from its spot on an above ground pool, the water will have to be drained from the pool. Then, a marine patch can be placed on the area to re-attach the vinyl to the place where it came apart. Allow this to dry thoroughly before refilling the pool.
To clean algae from a vinyl pool liner after it has become crystallized, use a solution of bleach and water with a scrub brush. One cup of bleach for every 5 gallons of water should be enough to clean the vinyl liner. Rinse well, then let dry before storing the pool.
If it is a vinyl liner pool you have to use a submersible pump. You can get a small one for right at $100.
High pressure water cleaners are very effective in removing tough stains from surfaces. The high pressure of the water helps to dislodge and wash away dirt, grime, and stains that are difficult to remove with regular cleaning methods.
How are you planning on making the pool water tight? If you want to use a Vinyl Liner, you should consult the dealer you are planning on ordering the liner from. A lot of Vinyl Liner manufactures will not make a liner for that pool.