Connect the vacuum hose to the pump intake and skimmer basket
The vacuum hose connects to your pool's circulation system at the pump intake, which is the pipe that pulls water from the pool. On most above ground pools, this intake sits between the skimmer basket and the pump itself. You'll see a threaded port or a quick-connect fitting where the hose attaches.
Before you attach anything, turn off the pump. Screw or click the vacuum hose onto the intake port—the connection should be hand-tight and watertight. If you're using a quick-connect fitting, push the hose end straight in until you hear or feel it lock. If water leaks from the connection once you turn the pump back on, turn it off again and tighten the hose another quarter turn.
The other end of the hose connects to the vacuum head, which is the flat tool you'll push along the pool floor. The vacuum head has a port on top where the hose screws or clips on. Make sure this connection is also tight before you start vacuuming.
Key Takeaways
- The vacuum hose screws or clips onto the pump intake port, which sits between the skimmer and the pump on most above ground pools.
- Turn off the pump before connecting or disconnecting the hose to avoid air leaks and damage to the pump.
- Fill the hose with water before you start vacuuming so the pump doesn't suck air and lose suction.
- The vacuum head connects to the other end of the hose and should move smoothly across the pool floor without catching on the walls.
Prime the hose so the pump doesn't lose suction
Before you turn the pump on, you need to fill the hose with water. This step, called priming, prevents the pump from pulling air instead of water, which breaks the suction and makes the vacuum useless. If you skip this, the pump will run but nothing will come up the hose.
To prime the hose, lay it on the pool deck and submerge one end in the pool water. Hold the other end (the one that connects to the vacuum head) above the water and wait a few seconds for water to flow into it. You'll see the hose fill from the submerged end. Once water reaches the top, quickly attach the vacuum head to seal the hose, then turn on the pump. The water inside the hose keeps the pump from pulling air.
If you forget to prime and turn on the pump, turn it off right away. Disconnect the hose, fill it again, and reconnect it before starting over.
Check that your pump intake can handle the vacuum hose diameter
Vacuum hoses come in two standard sizes: 1.25 inches and 1.5 inches in diameter. Your pump intake port is designed for one of these sizes. If you buy a hose that doesn't match, it either won't fit or will fit loosely and leak water.
Check your pump manual or look at the intake port itself—the opening will be clearly one size or the other. If you're not sure, bring a photo of the port to a pool supply store and they can tell you which hose you need. Buying the wrong size means wasting money and having to return it.
Some above ground pool kits come with a hose already sized for your pump, so if you're using the original equipment, this usually isn't a problem. If you're replacing an old hose or buying a new one, measure or ask before you buy.
Turn on the pump and watch for leaks at the connections
Once the hose is primed and connected at both ends, turn the pump on at low speed if your pump has a dial or switch. Water should flow steadily up the hose and out through the vacuum head into the pool. If you hear a hissing sound or see water spraying from a connection, turn the pump off when ready.
The most common leak point is where the hose screws onto the intake port. If that's where the water is coming from, turn off the pump, let the pressure drop for a few seconds, and tighten the connection another quarter turn. Then turn the pump back on and check again. Repeat until the leak stops.
If the leak is at the vacuum head connection, the same fix applies—tighten the hose onto the head. If tightening doesn't stop the leak, the threads may be stripped and you'll need a new hose or head.
Move the vacuum head slowly across the pool floor
Once the pump is running without leaks, you can start vacuuming. Push the vacuum head slowly across the bottom of the pool, overlapping each pass so you don't miss spots. The suction pulls debris into the hose and up to the pump, where it gets trapped in the pump basket or filter.
If the vacuum head gets stuck or won't move smoothly, stop and check for tangles in the hose or debris wrapped around the head. Don't force it—you can tear the hose or damage the pump. Back up, clear the blockage, and try again.
As you vacuum, watch the pump pressure gauge if your pump has one. If the pressure climbs higher than normal, the pump basket or filter is getting full of debris. Stop vacuuming, turn off the pump, and empty the basket or backwash the filter before continuing.
Disconnect the hose and drain it when you're done
When you finish vacuuming, turn off the pump and wait a few seconds for the water to stop flowing. Then disconnect the hose from the vacuum head first, followed by the intake port. If you leave the hose connected overnight, water can sit inside it and grow algae or bacteria, especially in warm weather.
Lay the hose on the deck in a sunny spot so it drains and dries. Coil it loosely—tight coils can kink the hose and create weak spots. Store it in a shaded area once it's dry, away from direct sunlight, which breaks down the plastic over time.
If you notice cracks or soft spots in the hose during storage, replace it before the next use. A damaged hose can burst under pump pressure and flood your deck.
Frequently Asked Questions
What if my pump doesn't have a separate intake port?
Some above ground pools have the intake built into the skimmer basket housing. In that case, the vacuum hose connects directly to the skimmer, usually with a quick-connect fitting or threaded adapter. Check your pool manual to see where your specific pump's intake is located. If you can't find it, take a photo to a pool supply store and they can point it out.
Can I use a shop vacuum instead of a pool vacuum?
No. Shop vacuums are not designed to handle the pressure and flow of pool water. They will overheat, fail, and may be damaged beyond repair. Always use a vacuum system designed for pools, which includes a hose, head, and connection to your pool's pump or a dedicated pool vacuum unit.
Why is there no suction coming through the hose?
The most common cause is that the hose wasn't primed—it's full of air instead of water. Turn off the pump, disconnect the hose, fill it with water again, and reconnect it. Other causes include a clogged pump basket, a kinked hose, or a loose connection at the intake port. Check each of these before running the pump again.
How often should I vacuum my above ground pool?
Vacuum once a week during swimming season if the pool is used regularly. If debris is falling in faster—leaves, dirt, pollen—vacuum more often. If the pool sits unused, vacuum every two weeks to keep the floor clean and prevent algae growth on the bottom.
Do I need to backwash the filter after vacuuming?
If your pool has a sand or DE filter with a backwash valve, you may need to backwash after vacuuming if the pressure gauge rises noticeably. Check your filter manual for the recommended pressure range. If you have a cartridge filter, you don't backwash—instead, turn off the pump and rinse the cartridge with a hose when pressure climbs.