How many orings

Emerson is not the name of the pump, that's the brand of the motor attached to the wet end, and the two together make a pump.
1081/1563 only means that it meets the standards for a pool motor.
provide make and model, for your pump.

I am sorry to say .. but ur problem is unfixable..good luck finding a new one :D.

Shooting continusously caused by worn orings in the trigger valve and in the gun.Dewalt framing nailers use some vinyl orings (gold or clear in color) that fail too soon in both the trigger and the cylinder spacer (white plastic). Air out the nose of gun indicates air is leaking past the cylinder spacer seals (If piston is pushed down with air leak then headvalve seal is leaking (remove nails for this test)). If piston is not pushed down with leak, remove head and pull out the cylinder with cylinder spacer (white plastic). Place the cylinder on workbench with bottom up. Push down on locking ring and remove retainer to release all the other parts. Take picture or take note of parts together and as you pull them off to aid in re-assembly. You will need to replace the two orings between the white cylinder spacer and the cylinder. Order oring kit from dewalt or just purchase one ( # 141 universal oring ) and one metric oring 74.4mm x 3.1mm from hydraulic parts store. If the piston was pushed down with air leak, replace headvalve orings in the head. The trigger valve also has vinyl orings on the trigger pin. You could try replacing the orings but hard to find . Pin uses 2mm x 1.5mm. The orings on the inner valve should fit snuggly on the outer contact surface. If the valve just falls out the the body, the orings are too loose or the body is worn. I would just replace the trigger valve to be safe, however repaired works ok if you can find the orings. Trigger orings do not come in the kit. I would also remove the nails after each use and only reinstall them after air is connected and gun seems to work as it should. The Good luck with your repair.

The seals are specific to the Jacuzzi pump housing not to the Emerson motor. Most Jacuzzi pumps use the PS-200 or PS-201 seal (some have it listed as AS-20X) here is a Pump Seal Cross Reference.

With my Bosch Evolution 500 series, this problem was caused by water in the washer's sub pan tripping the leak detector float switch. The water came from a hose leaking at the connection to the sump body (white plastic "bowl" in center of dishwasher). Remove water (wet/dry shop vac) and should work. Obviously, the leak must be fixed. Probably oring on hose that needs replacement. Remember to lubricate oring with silicone grease.

Three things kill a pump, air, electric or dirty filter
1. Make sure that you are not using an extension cord.
2. If you can see water swirling around in the basket on the front of the pump you have air working it's way in.
3. If not 1 or 2 do you have a DE or Cartridge filter. is so might need an acid bath.
If you see water swishing around in the basket you are taking in air which will work to kill the prime on a pump. Check the water intake connection on the front of the pump and the strainer lid for worn out o rings. An o ring that is cracked or leaves black reisdue on your finger needs to be replaced. Never use vasoline to lube orings.
If you want to check this insert a garden hose while the filter is off into the jet that puts water into the pool. By doing this "reverse prime" you can find the suction side (any connection before the pump) that is loose. Since they wont leek under normal operating conditions this will help flag any bad oring or connection.

Manual or Automatic?

Usually the problem is a worn out Strainer basket oring. With the addtional strain of trying to draw water through 40ft of vac hose it is easier to draw air from a worn out strainer o ring. My suggestion is to reverse prime, replace o ring if leaking and make sure you lube it with a silicon based lube.