I had the same problem once. I found that I had a leak in the piping from the skimmers and air was beeing sucked to the pump. Once also a Barracuda pipe got punctured and was allowing air to go to the pump.
Blanche, Like a siphon hose, once you get liquid flowing you do not want air to get in or it will interrupt the flow of liquid. If there is air in the line (vacuum hose) and no check valve (which stops this problem), you will lose prime.
IF YOU WANT AVOID LOSING VACUUM WHEN HOOKING UP YOUR POOL CLEANER HOOK POOL CLEANER TO THE END OF THE POOL HOSE TO BE USED (SWIVEL CUFF END). PUT HOSE IN POOL ALONG WITH CLEANER ON IT THEN WHERE THE WATER COMES OUT OF THE POOL INLET PLACE ON INLET FORCING WATER INTO THE THE HOSE FROM POOL PUMP, WHEN THE HOSE IS FULL THE POOL CLEANER WILL START BLOWING OUT AIR FROM THE HOSE AND FLOAT TO THE TOP AND THEN SINK AGAIN ONCE FULL OF WATER, THEN HOOK TO YOUR SKIMMER .IT SHOULD START CLEANING AFTER THAT
I'm having the same problem. What seems to be happening with my filter system is the motor itself is more powerful than the vacuum hose can suck, the motor gets starved for water and loses pressure. I try to compensate for this by placing the 'dish-lid-thingy' (sorry I don't know the actual name) a little askew. If I can get this just right, what the motor is unable to suck thru the hose, it can also suck in thru that sliver of a gap the the skimmer box.
The pump is loosing prime. That is the small round thing near the motor. The filter is the large tank near the pump. Have you cleaned the skimmer and pump baskets? Have you maintained water level in the pool? Or you may actually have a leak on the suction side of the pump. Have you check the pump lid to see if it is secured tightly but not over tight?
Ken
If the pool pump is losing its prime when you hook up the vacuum you probably have a poor seal around the suction of the pump. There is probably also a poor seal around the suction inlet in the vacuum equipment.
There wont be any dirt under the sand. When you vacuum your pool you should do it on filter mode Otherwise you will lose a lot of water for nothing, this would be especially wasteful in the case of a salt water pool. Ofter having vacuumed the pool on filter mode and if the pressure gets too high backwash. after backwash rinse for a minute, then return to filter.
Yes it can. The sand is jagged and over time with the water running through it will become smooth and lose its effectiveness. Normal use change every 5 years, heavy use change every 3 years.
Fuel Filter? Air Filter?
Fuel filter may be clogged. Replace the fuel filter.
change the fuel filter
The filter may be lose if this is not the case the threads around the filter may be "stripped". Try changing the filter if this does not work I would take your vehichle to a certified mechanic.
A sand filter has laterals (plastic tubes with holes in them) in the bottom, covered with a foot or more of sand of a particular size grain. Pool water is flowed onto the top of the sand and vacuum pressure draws the water through the sand. The particles in the water are trapped in the upper level of the sand and the clean water flows through the laterals and back to the pool. As the dirt builds up on the top of the sand (the schmutzdeck) the filter actually cleans better. Once the dirt layer is thick enough to impede the flow of water, you have to remove it by backwashing. You do not want to backwash too often or you will lose the efficacy of the filter. Be sure to shut off the pump before you move the lever to backwash or you WILL crack the laterals - requiring a very expensive repair.
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Check the fuel filter and catalatic convertor.
Change the fuel filter or it may be the rev limitor that is in the computer..
Dirty fuel filter, dirty air filter, bad catalytic converter, restricted exhaust, insufficient fuel pressure.
Could be a plugged fuel filter or a plugged catalytic converter.