Ideally you show keep your water level between one third and one half the way up the opening of the skimmer. This is the level at which the skimmer(s) operate most efficiently.
In the middle of the unit. Half way
Could be the water level of the pool is too low. Top up with the hose into the skimmer basket.
Regardless of the position of any tiles on the pool wall The water level should be about 3 or 4 inches / 75-100mm above the top of the skimmer vein before the skimmer basket or at such a level that it does not suck air through the skimmer. of you have a suction side floating pool skimmer you can let it get as high as you like and as long as it is sealed properly as low as you like.
Too much iron in the water
If you have a top skimmer basket the water level should be at least an inch above the basket, so you are not sucking any air. They seem to operate more effectivly at removing floating material BEFORE IT SINKS if the level is about half the distance from the top to the bottom of the skimmer opening.
If you have the regular set up that includes a skimmer, pump and filter then you don't have to waste any water. Get an lid-to-hose adapter, that fits over the skimmer basket at your pool supply store. Fill the hose with water and attach it to the lid. Place the lid inside the skimmer over the skimmer basket, then vacuum to your hearts content. Pool Masters
No you just have to get the water level below the skimmer after that you should have no trouble making repairs.
Check you water level. It sounds like you have too much water in your pool. When your pump is running, it is "sucking" water through the skimmer, keeping the water level pulled down inside of the skimmer. When you turn the pump off, the water level pushes back up, causing the skimmer lid to come off.BETTER ANSWER::Totally opposite of the above answer. If the water level is at or below the throat of the skimmer then yes the pool water can vortex in that skimmer causing air to be sucked into the pump. The skimmer basket keeps popping up because of the entrapped air. It has nowhere to go except back to the pool in the direction of least resistance when the pump shuts off. Bring and keep the water at mid level or slightly higher. Add fill water when the water gets to within about one inch of the bottom of the skimmer. Another reason would be that you have an actual suction leak. Suctions leaks are found in the plumbing and/or pump back to the pool on the suction side of the pump. Sometimes the pump seal can leak and cause this. Check under the base of the pump at a place between the pump basket or pot and the motor. If damp, that may be the cause of the air. The air gets into the filter tank then backs up to the pool at the skimmer.K
It won't work as a skimmer if your water level is above the skimmer. If you watch how the skimmer works, the water is pulled in over the skimmer door and it won't "skim" the floating debris off the surface of the water if the water level covers the entire opening, your skimmer will just suck in water that is below the surface. If you keep the water level so it's at least below the opening an inch or so, you should be o.k. If you've recently had alot of rain, you may need to drain some water out of the pool so your skimmers function properly.
The water level needs to be maintained at the middle of the skimmer opening or center of the tile line.
You could drain it down to the correct level if you feel better about it or you can just let it come down naturally and take advantage of the free water. I have a floating pool skimmer to keep my pool clean and it makes no difference whether my pool is full or nearly empty.
your skimmer basket is full and it is not takink in any water. put water in your pool with a garden hose.
The general system ofreducing the water in the pool below the skimmer basket level is so that the filtration equipment and tubing can be drained. This averts the danger if the pipes freezing and other damage occurring as a result of frozen water in the filtration system.