Connect the hose directly to the skimmer intake valve
The skimmer is the easiest place to attach a pool vacuum hose because it draws water naturally through the pool's circulation system. You do not need to drain the pool or buy extra equipment. The hose connects to the valve opening on the front or side of the skimmer basket housing — the plastic box that sits at the pool's edge.
The connection works the same way whether your pool is above-ground or in-ground. The skimmer intake pulls water through the hose and into the pump, which creates suction at the vacuum head on the pool floor. This is why skimmer attachment is the standard method for most residential pools.
Key Takeaways
- The skimmer intake valve is located on the front or side of the skimmer basket housing and accepts a standard hose connection.
- You must remove the skimmer basket and close the main drain valve before attaching the hose, or suction will split between the two.
- The hose connection uses a threaded collar that twists clockwise by hand until snug — do not use a wrench or force it.
- If the hose does not seal, the rubber gasket inside the collar may be cracked or missing, and replacing it costs a few dollars.
- The vacuum head and pole attach to the other end of the hose in the same way, with the threaded collar twisting onto the head's intake port.
Remove the skimmer basket and close the main drain
Before you attach the hose, lift out the skimmer basket — the plastic cage that catches leaves and debris. Set it aside. If you leave the basket in place, the hose connection will not seal properly and water will leak around the collar.
Next, locate the main drain valve at the bottom of the pool or on the pump equipment. Turn the valve handle clockwise until it stops. This closes the main drain so all suction comes through the skimmer. If the main drain stays open, the suction splits between the skimmer and the drain, and your vacuum will not work at full strength.
Some pools have a three-way valve instead of separate skimmer and drain valves. If yours does, turn the handle to point toward the skimmer only. Check your pool manual or the valve itself for the correct position marking.
Locate the intake valve on the skimmer housing
Look at the front or side of the skimmer basket housing — the plastic structure built into the pool wall. You will see a threaded opening about 1.5 to 2 inches wide. This is the intake valve. It may have a small cap or plug in it. If it does, unscrew the cap by turning it counterclockwise and set it aside.
The intake valve connects directly to the pump and circulation system. It is separate from the skimmer opening where leaves float in. Do not confuse the two. The intake valve is lower and smaller, and it has a threaded collar around it designed to grip the hose.
Twist the hose collar onto the intake valve
The end of your pool vacuum hose has a threaded plastic collar. Hold the hose so the collar faces the intake valve opening. Push the collar onto the valve threads and turn it clockwise by hand. The collar should twist on smoothly without resistance.
Keep turning until the collar is snug. You should feel it tighten, but do not force it or use a wrench. Hand-tight is correct. If you over-tighten, you can crack the plastic collar or damage the gasket inside, and then water will leak when you run the vacuum.
Once the collar is seated, pull gently on the hose. It should not move or come loose. If it does, the connection is not tight enough. Twist the collar another quarter turn and test again.
Attach the vacuum head and pole to the other end
The opposite end of the hose connects to the vacuum head — the flat or slightly curved plastic piece that sits on the pool floor. The head has a threaded intake port on top. Twist the hose collar onto this port the same way: push on, turn clockwise, and tighten by hand until snug.
The pole screws into the top of the vacuum head. Most poles have a threaded connection that twists clockwise. Screw the pole in until it is tight, then attach the hose to the pole if your setup requires it. Some hoses clip to the pole with plastic bands to keep the hose from tangling as you vacuum.
Prime the hose before you start vacuuming
Before you turn on the pump, fill the hose with water so it does not suck air. Lay the hose on the pool deck and submerge one end in the pool. Hold the other end (the one attached to the vacuum head) and push it underwater slowly, letting water fill the hose from the submerged end. Once water reaches the end in your hand, the hose is primed.
Priming prevents the pump from running dry and losing suction. If you skip this step, the pump will suck air for the first few seconds, and the vacuum head will not grip the pool floor. You will have to stop, prime again, and restart.
Troubleshoot a leaking or loose connection
If water leaks where the hose meets the skimmer intake, the connection is not tight enough. Remove the hose by turning the collar counterclockwise, then twist it back on and tighten further. Test by running the pump for a few seconds before you start vacuuming.
If tightening does not stop the leak, the rubber gasket inside the collar may be cracked or missing. The gasket is a thin rubber ring that sits inside the collar and seals against the valve threads. You can buy a replacement gasket for a few dollars at any pool supply store. Unscrew the collar, remove the old gasket, and press the new one into the collar groove, then reattach the hose.
If the hose still leaks after you replace the gasket, the valve threads themselves may be damaged. In that case, you will need a new intake valve, which requires a pool technician to install.
Frequently Asked Questions
Can I attach the hose to the main drain instead of the skimmer?
Yes, but it is slower. The main drain creates less suction than the skimmer because it is deeper and farther from the pump. Most people use the skimmer for routine vacuuming and the main drain only if the skimmer is clogged or broken. If you use the main drain, close the skimmer intake valve so all suction comes from the drain.
What if my hose is too short to reach the vacuum head?
You can buy hose extensions at any pool supply store. They come in 1-foot, 2-foot, and 4-foot sections and connect the same way — twist the collar clockwise onto the existing hose end, then attach the vacuum head to the extension. Make sure the extension is the same diameter as your hose.
Do I need to use plumber's tape on the hose collar threads?
No. Pool hose collars use a rubber gasket to seal, not tape. Tape is for metal pipe threads. If you add tape to a hose collar, it can prevent the gasket from sealing properly and cause leaks.
Can I leave the hose attached to the skimmer when I am not vacuuming?
You can, but it is better to disconnect it. Leaving the hose attached keeps the skimmer intake closed, which can reduce water circulation and allow algae to grow in the skimmer line. Disconnect the hose after each use and replace the intake valve cap.