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You probably have air leaking through either your vac hose and/or the valve that controls your vac line. You might try replacing the gaskets on your valve stems and try a new vac hose. Also important to get the air pout of the hosing you are using to vac wuth before opening the vac line.
AnswerThe pump loosing its vacuum is definitely caused by a poor seal somewhere between the suction of the pump and the suction inlet of your vacuum equipment.In the case of an above ground installation, check all connections of the hose and your vacuum apparatus.
In the case of an in ground installation, you could have a crack in the pipes from the pool inlet to the isolation valve close to the pump. To check this, make sure the water level of the pool is ABOVE the connection point where you attach your vacuum hose. Set the filter up for vacuum operation WITHOUT hooking up the vacuum hose. If the pump keeps it's prime, your pipes are probably O.K. Check your vacuum hose and apparatus. If you keep the water level higher than the suction connection in the pool, even if the connection is not 100%, the pump won't loose it's prime.
What else can I help you with?
Is it the vacuum pump or steering pump that's bad if you lose brakes and steering same time?
power steering pump
How does a dry prime pump work?
A dry prime pump will work similar to a normal vacuum. However, the dry prime pump will suck up any solids, liquids, and will get rid of larger messes in a shorter amount of time.
How do you purge the air out of the coolling system of a Lincoln LS?
you will have to evacuate the refrigerant then have a vacuum pump hooked up to it and have it hold a vaccuum and then recharge the system
How do you get more suction in skimmer for pool vacuum?
you may have to prime your pump Clean or replace the filter.
Will a faulty check vavle cause the pump to lose its prime?
Yes it could. It would depend on it's application, where it is in relation to the pump and the type of pump and system you have.
Why does Centrifugal pump lose prime?
A centrifugal pump can lose prime due to several reasons, including air leaks in the suction line, insufficient liquid in the source, or a blockage in the suction line. Additionally, if the pump is not properly vented, air can become trapped in the casing, preventing the pump from maintaining its prime. Other factors like excessive suction lift or cavitation can also contribute to prime loss. Regular maintenance and proper installation can help mitigate these issues.
You have a 1987 vettewhen you turn key on fuel pump doesnt kick on changed relay and pump When you jump wires on relay pump comes on But not with the relay hooked upneed pump to prime injecters?
the prime signal is built into the ecm check for quad driver failure codes reman ecu about 129.00 to 150.00 with exchange reuse old prom chip
How can you create a partial vacuum at home?
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.
Where is the vacuum pump on 91 s-10?
The engine is the vacuum pump. All the vacuum operated accessories are operated by the vacuum supplied from the engine.
What is the maximum vacuum pressure in psi that can be achieved by the vacuum pump?
The maximum vacuum pressure in psi that can be achieved by the vacuum pump is 29.92 psi.
Will valve adjustment cause fuel pump to lose vacuum at high rpm on a 450 Yamaha rhino?
Engine vacuum will be affected by valve adjustment due to vacuum leakage when valves are not closed at the proper time, when the piston is on a downward stroke. The vacuum would be less that it should be.
Why 350 engines lose prime in carburetor?
That means you have a manual choke on your carb and not a vacuum advance choke( black little round thing on the lft side of your carb facing your eng.)..the fuel evaporates from your choke being open that's why you have to pump your gas that would be my guess........
