I had this problem as well and it was a cracked gasket in between the pump and the pool. When I wasn't vacuuming the basket was gravity fed by the skimmer but when vacuuming it was suction fed and air enterd the hose. Check your fittings and connections. Hope this helps. Derek
power steering pump
The same as the floor vacuum inside the house but instead of it sucking air it sucks water through the filter. Just run the pool hose from the pool vacuum to the vacuum plate over the top of the leaf basket. then turn on the pump and runi t along the floor of the pool.
Only if it is a fairly big leaf and somehow it made it through your skimmer's basket and your pump's basket. But assuming it did the answer is yes, leafs can potentially clog your pump's impeller.
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
By setting the filter to waste However most pools can only be lowered to the top of the leaf basket unless they have a vacuum hose connected that does not let air into the system.
Because the pump is set to "vacuum to waste".
You want to stop boiling water Vacuum Chamber because of the vessel seal. If the pump is boiling it will stop at the point of equilibrium.
If the vacuum pump is on, the water will continue to boil. If the vacuum pump is off as the vessel is sealed, the boiling will stop at a point of equilibrium.
Check to make sure the basket part of your pump is full of water. If it is an above ground pool an easy way to fill the pump basket and prime the pump is to turn off the pump and set the filter valve to "backwash". Turn pump on and run until water in sightglass runs clear. The pump should have achived primed now. Turn pump off and reset valve to "filter", turn pump on. I do not take off the pump basket lid because the water will come out of it very fast and it is very difficult to replace the lid with all that water gushing up(unless you have shutoff valves or plugs for the lines. I do not have them).
Choose a vacuum pump with a 29.75 hg that makes water boil 1 degree C. The typical boiling point of water is hundred degrees Celsius.
Normally there are 2 baskets before the pump, One behind the skimmer and one on the pump. However If you only have the one basket then you will have rubbish caught in the impeller of the pump, You will have to take the pump apart and clean the impeller out.
Usually caused by a vacuum leak on the suction side ,between the pump and the inlet at the pool. Or a blockage in the vacuum head or hose being used for cleaning, such as too many leaves or other foreign object. An over filled filter can also lead to easier loss of pressure , as the pump is already running at near cavitation.