Pool Skimmer Repair Guide for Inland Empire Pool Owners
Your pool skimmer is the hardest working piece of equipment in your system. It sucks water off the surface, pulling in leaves, bugs, pollen, and debris before they can sink and foul your filtration system. When a skimmer fails, you stop removing surface debris and your whole pool suffers. This guide walks you through diagnosing skimmer problems, handling common repairs yourself, and knowing when to call a professional. We’ve been fixing these since 1999 in the Inland Empire, and we’ll show you exactly how.
How Your Pool Skimmer Works and Why It Matters
Your skimmer does two critical jobs. First, it pulls water from the pool surface into a basket that catches larger debris. Second, it routes that water down to your pump and filter. The skimmer connects to your main drain line and equalizer line, balancing water draw from both the surface and deeper down. When the skimmer works, your pool stays clean and clear. When it fails, leaves pile up, debris clogs your filter faster, and you’ll be cleaning more often.
Most residential pools have one main skimmer mounted on the pool wall, though some larger pools or spas have two or more. The skimmer has a removable basket inside, a weir (a hinged door that controls water flow), a face plate gasket that seals water inside, and a throat (the internal opening where water enters the pump line). Cracks, leaks, or clogs anywhere in that chain mean skimmer failure.
Common Pool Skimmer Problems: What Goes Wrong
Skimmer problems fall into five main categories. First, the basket cracks or fills with debris and can’t flow water. Second, the throat develops a crack or the internal wall breaks, letting air into your pump line. Third, the weir sticks or breaks, stopping water flow. Fourth, the gasket shrinks or hardens, and water leaks out around the face plate. Fifth, the equalizer line gets blocked by debris, throwing off water balance.
You’ll know your skimmer is failing when you see water leaking out around the face plate, you find air bubbles coming from the pump, you notice the weir won’t move or stays stuck open, or your water level drops faster than normal. Sometimes the basket simply splits and stops catching debris. Other times you’ll see debris piling up on the surface even though the skimmer is running.
Diagnosing a Leaking or Failing Skimmer
Start by checking water level. A skimmer leak usually shows as steady water loss, one to two inches per day once the problem is bad enough to notice. Turn off your pump and look at the back and bottom of the skimmer housing. You’ll be looking behind the skimmer, on the pool wall side, for active drips or stains from old leaks. If water is pouring out, the gasket has gone bad or the face plate has cracked.
Next, check the basket. Pull it out (with the pump off) and look for splits, cracks, or chunks missing. Baskets get brittle over time, especially in full sun, and they split from impact or pressure changes. If you see a split larger than a half-inch, the basket needs replacing.
Run your pump and watch the weir. It should move freely, opening when water is high and closing when water drops. If it’s stuck closed, the skimmer won’t pull water even if everything else is fine. Sometimes the weir sticks because of mineral buildup or debris jamming it. Other times the hinge fails and it won’t move at all.
Listen to your pump. Air bubbles entering the line make a distinctive sucking or gurgling sound. This usually means the skimmer gasket is bad or the throat has cracked, letting air enter the system. Air in the pump can damage the impeller and reduce flow.
DIY Skimmer Basket Replacement: Step by Step
Replacing a basket is one of the easiest skimmer repairs you can do yourself. Here’s exactly how.
Turn off your pump and allow pressure to equalize. Wait two minutes. Open the skimmer face plate (usually held by two thumb screws or a single bolt at the top). Slide the old basket out by lifting it straight up and toward you. Don’t twist or angle it, or you’ll snag the weir lever.
Inspect the basket opening, throat, and weir lever for debris, cracks, or corrosion. Brush away any dirt or mineral scale. If you see a crack in the throat opening, the basket swap won’t fix the leak, and you’ll need professional help.
Measure your old basket before ordering a replacement. Most common sizes are 6 inches or 8 inches in diameter, and depths range from 10 to 14 inches. Common brands include Hayward, Pentair, Jandy, and Polaris. Check your skimmer brand and model number (usually on a label on the back side) and order the exact replacement from a pool supply store or online. A new basket costs 15 to 35 dollars depending on material and brand.
Install the new basket by sliding it straight down into the opening, aligning the lever hooks with the weir handle. Push it all the way down until it seats firmly at the bottom. Don’t force it; it should slide in smoothly. Reinstall the face plate, tighten the screws evenly (not one side all the way, then the other), and run the pump to test.
Turn on your pump and check for leaks at the face plate within the first minute. If you see water spraying out around the gasket, the gasket may need replacing, or the face plate may be misaligned. Turn off the pump, remove the face plate, and reseat it. If leaks continue, the gasket has likely failed.
Replacing the Skimmer Weir: DIY Steps
The weir is the internal hinged door that closes when your pool water level drops. If it sticks open or won’t close, water bypasses your equalizer line and your pump can pull air. If the hinge breaks, the weir falls into the basket and stops the flow entirely.
Turn off your pump. Open the face plate. Most weirs are held by a single pin or clip at the hinge. Look inside the skimmer, at the right side where the weir hinges. You’ll see a small pin through the hinge loop. Use needle-nose pliers to remove it by pulling it straight out and upward. The weir will come free. Inspect the hinge pin for corrosion. If it’s heavily corroded or the hinge loop is cracked, you need a new weir assembly.
Clean the weir and hinge pin with a soft brush and vinegar to remove mineral scale. Rinse thoroughly and dry. Reinstall by aligning the hinge loop with the opening in the skimmer wall and sliding the pin back in. The weir should swing freely, closing when pressure pushes it in and opening under water flow.
Weirs are usually part of complete gasket kits that include the face plate seal, weir assembly, and sometimes basket hardware. Kits run 40 to 80 dollars depending on brand. Hayward, Pentair, and Jandy all make complete replacement kits that fit their older models, so check your skimmer model number before ordering.
Replacing the Skimmer Gasket: When and How
The gasket is the rubber seal around the face plate that prevents water from leaking out of the skimmer. Over time, sun, chlorine, and pool chemicals harden and shrink the rubber, and water starts seeping out around the plate. If you see water coming from the sides of the face plate, the gasket needs replacement.
Turn off your pump. Open the face plate by removing the thumb screws or bolt. The old gasket sits in a groove around the perimeter of the opening. Use a flat screwdriver to carefully pry out the old gasket. Don’t damage the groove itself, or you’ll have trouble seating a new gasket.
Clean the groove thoroughly with a soft cloth and vinegar to remove any buildup, mold, or algae. Let it dry completely. Measure the diameter and width of the groove. Standard Hayward and Pentair gaskets are about three-eighths of an inch wide and fit grooves that are one-half inch deep.
Install the new gasket by pressing it into the groove, starting at the top and working your way around. Use your thumb or a rubber mallet with a soft face to seat it evenly. The gasket should sit flush in the groove with no gaps or bunching. Once seated, reinstall the face plate and tighten the screws in a crisscross pattern, not all on one side.
Run your pump and watch for leaks for the first two minutes. If water still seeps from the face plate, the groove may be damaged, or the gasket may not be seating evenly. Turn off the pump, remove the face plate again, and check that the gasket is fully seated on all sides. Sometimes reseating it fixes the leak.
Replacement gaskets cost 8 to 20 dollars, and you can buy them as standalone pieces or as part of a complete service kit. Hayward SP1090 and Pentair Bermuda skimmers are the most common units in the Inland Empire, and both have readily available gasket replacements.
Handling Cracks in the Skimmer Throat
The throat is the internal opening where water enters the pump line. If you see a crack in the throat wall, water will leak out even with a new gasket, and you’ll get air into your pump. This is the point where DIY repairs end, because repairing a cracked throat requires removing the entire skimmer from the pool wall, a job that takes specialized tools and plumbing knowledge.
To check if the throat is cracked, pull out the basket and shine a flashlight into the skimmer opening. Look at the bottom and sides of the internal chamber. You’re looking for visible splits or pieces that have broken away. If you see any cracks, the skimmer needs professional replacement.
A cracked throat usually happens one of two ways. First, the pool freezes during a rare Inland Empire cold snap and ice expands, cracking the plastic. Second, the skimmer is poorly installed or positioned where it takes weight from the pool deck, and the crack develops over years of pressure. Either way, the fix is skimmer replacement, not repair. Call a professional to handle this.
Dealing with Clogs and Debris Buildup
Sometimes the skimmer doesn’t leak, but it doesn’t pull water either. Usually this means the basket is full or the equalizer line is blocked. Pull out the basket and empty it. Hose off the basket cage and the skimmer bowl behind it to remove any silt or fine debris.
If the basket is clear and water still won’t flow, the equalizer line is clogged. The equalizer line is a small pipe that runs from the back of the skimmer down to the lower part of the pool. Its job is to let water return to the pool if the water level drops too far. If the equalizer clogs, the skimmer can’t pull water below the equalize port, and flow stops or becomes sluggish.
To clear an equalizer line, you need a wet vacuum or a reverse-flow drain cleaning tool. This is where professional help is often easier. We can push a small diameter rod through the line or use a specialized pump to reverse water flow and break the clog free. DIY attempts sometimes push the clog deeper or puncture the line. If you want to try it yourself, rent a wet vacuum from a home improvement store, attach it to the equalizer port on the back of the skimmer, and run it for 30 seconds. Often this pulls the clog out.
Brand-Specific Repair Notes: Hayward, Pentair, Jandy, and Polaris
Hayward Skimmers are the most common brand in Inland Empire residential pools. The standard Hayward SP1085 and SP1090 models are nearly identical. Both use a spring-loaded weir that often sticks if mineral scale builds up inside. If your Hayward weir is stuck, soak the skimmer in a bucket of white vinegar overnight (don’t drain the pool, just let the solution soak the face plate assembly). This dissolves mineral deposits and often frees the weir. Hayward baskets and gaskets are cheap and available everywhere; expect to pay 12 to 18 dollars for a basket and 8 to 12 dollars for a gasket.
Pentair Bermuda and Rebel skimmers are the second most common. These use a slightly different weir design with a rubber flapper instead of a spring hinge. Pentair flapper weirs can become waterlogged and won’t close. If the flapper sags, it needs replacing, not cleaning. Pentair gaskets are slightly thicker than Hayward gaskets and cost a bit more, usually 15 to 22 dollars. The weir kit for Pentair skimmers runs 55 to 75 dollars.
Jandy and Polaris skimmers are less common in the Inland Empire but both are well designed. Jandy DeckSkim models have a unique basket design where the basket hooks over a ledge instead of sliding straight down. Don’t force a standard basket into a Jandy skimmer, or you’ll break the ledge. Order the correct Jandy basket for your model. Polaris skimmers are known for solid plastic construction and rarely crack, but weir mechanisms can wear. Polaris gaskets and baskets are readily available but sometimes need ordering online because smaller pool stores don’t stock them.
All four brands have complete replacement gasket and weir kits available. We recommend buying kits rather than individual pieces, because the kit includes all the seals, clips, and hardware you’ll need for a complete job. Kits cost 45 to 90 dollars depending on brand and model year.
Cost of Skimmer Repair vs. Full Replacement
A cracked basket costs 15 to 35 dollars to fix yourself, plus 30 minutes of labor. A new gasket is 8 to 20 dollars and takes 15 minutes. A weir replacement is 40 to 80 dollars and takes 30 to 45 minutes. A complete gasket and weir kit is 45 to 90 dollars and takes an hour.
If the throat is cracked or the face plate is shattered, you need a new skimmer. A new Hayward or Pentair skimmer costs 80 to 150 dollars for the housing alone. Installation, new gaskets, and plumbing connections add another 150 to 300 dollars in labor. Total replacement is usually 250 to 450 dollars. If your pool is older or the skimmer is 10 plus years old, full replacement is often better than patching cracks, because you’ll get a unit with updated weir design and better seals.
DIY Repair vs. When to Call a Professional
Handle basket, gasket, and weir replacements yourself if you’re comfortable with basic hand tools. These repairs take an hour or less and you’ll save 100 to 200 dollars in service calls. You’ll need a screwdriver, needle-nose pliers, and a flashlight. Have white vinegar on hand for cleaning mineral buildup.
Call a professional if you see cracks in the throat, water leaking from the pool wall around the skimmer housing, or if you can’t get the weir to move after cleaning and vinegar soaking. These repairs require removing the skimmer from the pool, which means draining or partially draining your pool, breaking concrete seals, and replumbing the lines. This is a job for someone with specialized tools and experience.
Also call a professional if the equalizer line is blocked and a wet vacuum won’t clear it. Pushing a rod through can puncture the line, which makes the problem much worse. We have specialized equipment to clear lines without risk of damage.
If your pump is cavitating (making sucking noises) after you replace the gasket and weir, there’s still air in the system. This usually means a more serious leak is developing, and you need professional diagnosis. Don’t ignore cavitation; it will damage your pump impeller within days.
FAQ: Common Pool Skimmer Repair Questions
How often should I clean my pool skimmer basket?
Empty your skimmer basket twice a week during heavy pollen season and once a week during off-season. If you have trees close to your pool or live in a windier part of the Inland Empire, empty it more often. A full basket restricts water flow and makes your pump work harder. A clogged basket also forces air into the system, which can damage your pump seal.
Can I use a regular plastic basket instead of the brand-specific one?
No. Using the wrong basket will either fit too loosely and let debris bypass it, or fit too tight and reduce water flow. Stick with the correct size and model for your skimmer. Universal baskets sometimes work, but they often don’t seal properly and you’ll have the same water loss or air entry problem you started with.
What if water is leaking from the back of the skimmer?
Water leaking from the back or bottom of the skimmer means either the throat is cracked or the internal gasket (which is different from the face plate gasket) has failed. This usually requires professional service, because you need to remove the skimmer from the pool wall. Don’t wait on this repair; the leak will get worse and water loss will accelerate.
Why is my pool water level dropping even though the skimmer looks fine?
Check the equalizer line. Turn off the pump and look at the back of the skimmer. You should see a small port about six inches down from the top where water can return to the pool when the water level drops. If this port is blocked by algae or debris, water can’t equalize and the pump will pull a vacuum, which can draw water down. Also check your main drain and other equipment for leaks.
Is it normal for the weir to stick open in the summer?
If the weir sticks open occasionally but closes most of the time, mineral scale is building up on the hinge pin. Soak the face plate assembly in white vinegar for four to six hours to dissolve deposits. If the weir sticks constantly or won’t close at all, the hinge is worn or the spring has failed, and you need a replacement weir.
How do I know if my skimmer has an equalizer line?
Most modern pools have equalizer lines. If you look at the back of the skimmer, you’ll see two ports, one near the top and one near the bottom. The top port is usually plugged or capped. The bottom port is the equalizer line, which connects to the main drain line underground. If you only see one port, your pool may not have an equalizer line, or it’s plugged and needs clearing.
Can a cracked basket cause my pool to lose water?
A cracked basket doesn’t cause water loss, but it lets debris bypass the basket and clog your filter faster. A truly split basket (not just a small crack but a gap more than a half-inch long) might restrict water flow enough that you pull air into the system, which can cause secondary problems. If you see a split basket, replace it soon.
What’s the difference between a leak in the skimmer and a leak in the pool wall?
A skimmer leak shows as water dripping from the back or bottom of the skimmer housing, usually visible when you look behind the unit on the pool deck side. A pool wall leak is usually underneath the water line and shows as a wet spot on the deck or a depression in the ground around the pool. Skimmer leaks you can often fix yourself. Pool wall leaks almost always need professional leak detection and repair.
When to Book a Professional Pool Skimmer Repair
We handle skimmer repairs that are beyond DIY: cracked throats, internal gasket failure, equalizer line clogs, and full skimmer replacement. We carry parts in stock for Hayward, Pentair, Jandy, and Polaris units. Most repairs are completed the same day. Call us at (909) 330-4730 for a free estimate or to schedule service. We serve the entire Inland Empire and have been fixing pools for over 25 years.