Inlet line will be bigger then the outlet line. on the contrary on my motorcycle fuel pump, the inlet and outlet are the same size!
Yes
They use to have an adapter that would go from the hose to the inlet side of the pool which in turn went to the pump, most above ground pool use flex hose from the skimmer basket of the pool to the pump, you may just have to put a tee fitting in from the inlet side of the pool and add another inlet just so that you can vacuum, and cap this when you are finished vacuuming, this would be on the outside of the pool this would be added anywhere from the pump back to the pool on the inlet side.
A pool vacuum leak could mean that there is a leak in the vacuum hose that you use to vac the pool. Or it could mean that there is a leak on the suction side of the pump. It could be located somewhere between the skimmer and the inlet of the pump. At the pump it could mean that there is a leak at the pump seal or the pump lid or a pump gasket. Some of these leaks will not produce water at those leaks they may only suck air into the system. k
The pressure available to push liquid into the pump inlet, often referred to as the "suction pressure," typically ranges from atmospheric pressure to a few psi above atmospheric, depending on the system design and conditions. In many cases, a vacuum is created to assist in drawing the liquid into the pump. Additionally, the liquid's height above the pump inlet can contribute to the pressure available, known as static head. Proper system design ensures that this pressure is sufficient to avoid cavitation and ensure optimal pump performance.
Whe it needs it
Itll work' just not as efficiently
The engine is the vacuum pump. All the vacuum operated accessories are operated by the vacuum supplied from the engine.
The maximum vacuum pressure in psi that can be achieved by the vacuum pump is 29.92 psi.
You can create a partial vacuum at home by using a vacuum pump or by using a manual vacuum pump. Simply connect the pump to a sealed chamber or container, and then pump out the air to lower the pressure inside the chamber, creating a partial vacuum.
The pump should have a marking on it in the form of an arrow, "to carb" or "carb", or an "in" & "out" on it near the inlet and outlet ports (normally the bottom but depends on the mfg of the pump).
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.