Pool Equipment: questions, answered with sources
Each answer cites the public sources it was checked against, with the date it checked them. Jobs that need a licensed pro in Virginia say so, and explain the job instead of teaching it.
Automation & Controls
1 answer
Chlorinator Repair
2 answers
How do I clean a clogged pool chlorinator?
Turn off the pump and set the feeder's flow control valve to off, wait a minute for pressure to drop, then open the cover and take out every tablet and piece. Rinse the body, lid and fittings with clean water, check the return line to the pool is open, reassemble and refill with slow-dissolving trichlor tablets only. Never mix chemicals.
Why is my pool chlorinator not dispensing?
Most often the flow control valve is shut or set too low, the pump is not moving water through the feeder, or the tablets are gone or crusted over. Check the valve setting and the pump, then look for a blocked return line. If it is still dry after a cleaning, a pool technician should test the plumbing.
Cover & Reel Repair
4 answers
How do I repair a torn mesh pool cover?
Patch a small tear in the mesh yourself with the repair kit or instructions from the cover's maker: clean and dry the area, press the patch on firmly, then check the straps and that water drains through the mesh. Stop using a damaged safety cover until it is fixed, and call the maker for tears at seams, straps or anchors.
How much does pool cover repair cost in Virginia?
It depends on the damage and on who repairs it, and we found no dated Virginia price from a primary source, so we do not quote one. A small patch on sound mesh costs least; strap or anchor work, or a worn-out cover, costs more. Check the warranty, ask the maker, and get at least three written quotes for the same scope.
Why is my automatic pool cover not closing?
Usually something is in the way or the cover is under strain: debris or a hose in the track, water sitting on the cover, a pool water level below the middle of the skimmer opening, or a tripped breaker or GFCI. Release the switch, clear the obvious cause, reverse a foot or two and retry. If it stops again, call the installer.
How do I store a pool cover for the summer?
Clean the cover, let it dry, check it for damage, then fan-fold it into the bag it came with. Hang the bag off the ground so mice and rodents cannot get at it, and keep it away from chemicals and heat. Lower the deck anchors before you pull the cover off the pool, and fix any damage before fall.
Hot Tub Repair
5 answers
What does a hot tub repair technician check?
A technician starts with power and safety, then works through the filter and water flow, the pumps, the heater and its sensors, the control pack, the plumbing for leaks and the ozone or UV equipment. Most of that is electrical or sits behind the cabinet, so it is work for a trained spa technician or a licensed electrician.
How much does hot tub repair cost in Virginia?
There is no standard Virginia price, because the bill depends on what failed, the brand, whether parts are in stock, how hard the tub is to reach and whether it is still under warranty. A diagnostic or service-call fee usually comes first. Get a written quote that separates diagnosis, parts and labor before approving work.
Is it worth repairing an old hot tub?
Usually yes if the shell and frame are sound and the fault is a replaceable part such as a filter, pump, heater, control pack or cover. Usually no if the shell leaks or has separated, freezing has split the plumbing, or parts are no longer made. Get a written diagnosis and quote, then compare it with a replacement installed.
Why is my hot tub not heating?
Check the display message, the water flow and the filter first: a hot tub's heater only works with enough water moving through it, and a clogged filter is the usual culprit. If it still will not heat, or the breaker or GFCI trips, the heater, sensors or control pack are next. Those need a licensed pro.
How long does a hot tub last?
There is no fixed lifespan: a hot tub that is kept clean, covered, level and winter-ready can last many years, while poor water chemistry, a failed cover, an unlevel base or a freeze can end it early. Pumps, heaters and controls are replaceable; a leaking or cracked shell is the hardest problem to fix.
Leak Detection
4 answers
How do I do a bucket test for a pool leak?
Pick a day without rain or heavy wind, shut off the pump, cleaner and automatic fill, and set a bucket of pool water on a step so the water inside is a little higher than the pool. Mark both levels, wait 24 hours and compare. If the pool dropped more than the bucket, it may have a leak.
How much does pool leak detection cost in Virginia?
We found no Virginia source that dates a price for pool leak detection, so we do not quote one. The fee depends on how big and what kind of pool it is, how many places must be checked and whether the leak is in the shell or the plumbing. Do a bucket test first, then get at least three written quotes.
Why is my pool losing water only when the pump is running?
Water that disappears only while the pump runs usually points to a leak on the pressure side of the plumbing, the return lines, filter, heater or pump seal, that only shows when the system is under pressure. Look for wet ground at the equipment pad and bubbles at the return fittings, then run a bucket test with the pump on and off and call a pool pro.
How do I check my pool for leaks each season?
Run a bucket test with the pump and auto-fill off each spring, summer and fall, and note any week the pool drops more than 2 inches. Walk the equipment pad for wet spots and bubbles, test the automatic fill every three months, and drain the equipment before freezing weather. Catching a small leak early keeps it from growing.
Liner Repair
5 answers
How do I patch a vinyl pool liner?
For a small tear or hole, use a vinyl patch kit made for underwater use. Cut a patch with a two-inch overlap on every side and rounded corners, clean it and the liner, coat one side with the kit's vinyl cement, fold it loosely, unfold it over the hole underwater, press out the bubbles, and leave it to bond for a day.
How much does a new vinyl pool liner cost in Virginia?
There is no single Virginia price. The primary sources we checked on October 27, 2026 do not publish one. What moves a quote is the pool's size and shape, liner thickness and pattern, the condition of the base and cove, removal, water and chemicals, and season. Get itemized written quotes from licensed pool contractors and check the liner warranty first.
Should I patch or replace my vinyl pool liner?
Patch it if there are only one or two holes and the vinyl is otherwise soft and sound. Replace it if seams are separating, there are many tears, or the liner is brittle, bleached or no longer fits. Check the warranty first: seam failures may be covered in part, while rips and punctures usually are not.
Why is my pool liner wrinkling?
Vinyl liners wrinkle for a handful of reasons: water chemistry out of balance, a liner that was stretched or shrunk by draining or by cold, a poor fit from the original installation, or a base that has shifted. Check your water balance and level first, never drain the pool to smooth it out, and take stubborn wrinkles to the liner's seller.
How long does a vinyl pool liner last?
There is no fixed lifespan. Manufacturers warrant seams for 15 to 25 seasons or 20 years, but those warranties cover manufacturing defects, not wear, fading or damage. How long your liner lasts depends mostly on water balance, not draining the pool, protecting it from sharp objects, and covering it properly in winter.
Pool Filter Repair
2 answers
How do I backwash a sand filter?
Backwash when the gauge reads 6 to 8 PSI above the clean pressure you noted. Turn the pump off, push the valve handle down and turn it to Backwash, start the pump and run it about 2 minutes until the sight glass is clear. Pump off, set Rinse for 30 to 60 seconds, pump off, set Filter, then restart.
Why is my pool filter pressure so high?
Most often the filter is simply dirty. Compare the gauge with the clean pressure you noted at start-up: Hayward says to backwash a sand filter at 6-8 PSI above it, and Pentair says to clean a cartridge filter at about 10 psi above it. If the filter is clean and pressure is still high, check for a closed valve or blocked return line.
Pool Heater Repair
5 answers
What does a technician check when a pool heater won't fire?
A technician checks, in order, whether the heater is being told to run, whether water is flowing through it, whether the pressure switch and safety limits are closed, whether the board has power, whether it sparks, and whether gas reaches the pilot and burner. Gas and live-wire steps are licensed work in Virginia; you can rule out the breaker, time clock, pump basket and filter first.
How much does a pool heater repair visit cost in Virginia?
There is no standard Virginia price for a pool heater repair visit, and we found no dated price list to quote. The bill depends on the diagnosis, which part failed, whether the heat exchanger is involved, gas and permit rules, and the season. Get at least three written quotes from licensed businesses that itemize the diagnostic fee, parts and labor.
Should I fix my pool heater or buy a new one?
Fix it when the fault is a single part such as a pressure switch, igniter or control board and the heat exchanger is sound. Replace it when the heat exchanger is scaled or corroded, repairs keep returning, or the repair quote approaches the cost of a new heater. Ask for a written diagnosis and both quotes before deciding.
Why does my pool heater keep shutting off?
A pool heater shuts off when a safety or control opens: low water flow (dirty filter, full basket, low water level, pump on low speed), an overheated heat exchanger tripping a high limit, a time clock cutting the call for heat, or an ignition lockout. Note the display message and when it happens, then call a licensed technician.
How do I protect a pool heater from freezing in winter?
Either have a licensed pro shut the heater down and drain it for winter, or keep the pump circulating water through it during every freeze. Do not use the heater itself as freeze protection. Raypak says it is not warranted against freeze-ups, and that continuous pump operation is a must when temperatures are between 0°F and 32°F.
Pool Light Repair
3 answers
What does replacing a pool light involve?
Replacing a pool light is licensed electrical work. The pro de-energizes the circuit, swaps the light or its cord, fits a new gasket and checks the GFCI and bonding. Virginia requires an electrical tradesman licence, so verify it before you agree to anything.
How much does pool light repair cost in Virginia?
There is no standard Virginia price for pool light repair, and we found no dated price list to quote. The bill depends on what failed, the fixture, cord and conduit access, a new gasket, any GFCI or bonding fixes and a possible permit. Get at least three written quotes from licensed electricians that itemize diagnosis, parts and labor.
Why did my pool light fill with water?
Water gets into a pool light when its seal fails, most often the lens gasket. Pentair says reusing an old gasket after taking the light apart may let water leak into the assembly. Switch the light off at the breaker and leave it off. A flooded fixture can be an electrical shock hazard, so a licensed electrician should inspect it.
Pool Pump Repair
5 answers
What does replacing a pool pump motor involve?
A licensed electrician shuts off the circuit, removes the old motor, fits one with the matching horsepower, voltage and frame, usually replaces the shaft seal, reconnects and grounds it, bonds it to the pool structure, tests the GFCI, then primes the pump and checks for leaks. Virginia requires a tradesman licence for the electrical work.
How much does pool pump repair cost in Virginia?
There is no standard Virginia price for pool pump repair, and we found no dated price list to quote. The bill depends on what failed, whether it is a seal, a motor or the whole pump, matching electrics, GFCI and bonding fixes, and a possible permit. Get at least three written quotes from licensed businesses that itemize diagnosis, parts and labor.
Is it worth fixing a pool pump motor?
Often yes if the pump is fairly young, the housing and impeller are sound and the motor is the only failure. Often no if the pump is seven to ten years old or more, has a history of repairs, or is a single-speed model that runs many hours a day. Get a written diagnosis, then price a repair and a new pump side by side.
Why is my pool pump humming but not running?
A humming pool pump that will not turn is most often jammed with debris at the impeller, or starved of voltage, or has a worn motor. Switch it off at the breaker rather than letting it hum, because the windings overheat. Hayward's manual says to have a qualified professional open the pump. In Virginia the motor wiring needs a licensed electrician.
How long does a pool pump last?
No source puts a single number on it. ENERGY STAR treats seven to ten years as an age at which to look for warning signs such as noise, weak flow, overheating or slow starts, and Hayward says its pump gives many years of service. Cleaning the basket, never running it dry, correct voltage and freeze protection help it last.
Salt System Repair
5 answers
How does a salt chlorine generator work?
A salt chlorine generator runs pool water, with a little salt dissolved in it, through a cell with electrically charged plates. The current produces chlorine, which sanitizes the water and reverts to salt to be used again. It only makes chlorine, so you still test the water, and because of its wiring and gas risks, service belongs to a qualified pool professional.
How much does a salt cell replacement cost in Virginia?
There is no standard Virginia price for a salt cell replacement, and we found no dated price list to quote. The bill is a model-specific cell plus a service visit, and it depends on whether the cell is truly worn out, its age, warranty and any other fault found. Get at least three itemized written quotes naming the exact part number.
Should I repair or replace my salt chlorine generator?
Repair when the cause is salt level, scale, cold water or a cell on an otherwise sound generator; replace the cell when it is near its design life; replace the whole generator when both cell and controller are old or repairs pile up. Have a licensed pool professional diagnose first and quote both options in writing.
Why does my salt system say low salt when the level is fine?
Usually the unit and your test are measuring differently, or the reading is off for a reason. Pentair says its salt sensor is only within +/- 500 ppm, readings are unreliable for 24 hours after adding salt, cold water pauses accurate reporting, and a scaled cell can trigger warnings. Confirm with a salt meter before adding salt, and leave the cell and power center to a qualified pool professional.
How do I clean a salt cell?
Cleaning a salt cell means removing scale from its plates, and for heavy scale the manufacturer's method uses diluted muriatic acid and disconnected power. That is a job for a qualified pool professional. Between visits, keep calcium hardness and balance in range, keep the filter working, and have the cell inspected at least twice a year.
Winterizing
4 answers
How do I winterize an above-ground pool?
In Virginia, take an above-ground pool down for winter: drain and dry the pump, filter and hoses, store them indoors, then drain the pool, dry the liner and fold it. A pool maker advises this wherever temperatures drop below 32 degrees F. A hard-sided pool can stay up under a fitted cover once the water is balanced and the power is off.
How much does pool winterizing cost in Virginia?
We found no dated Virginia price for pool winterizing from a primary source, so we do not quote one. The price depends on pool type, equipment such as a sand filter or heater, the plumbing method, chemicals and the cover. Get at least three written bids that list what is included, and limit any deposit to 10% or $1,000, whichever is less.
Should I winterize my pool myself or hire a pool company?
Do it yourself on an above-ground pool: it is draining, drying and storing. Hire a pool company for an in-ground pool, a gas heater, hard-wired equipment or any plumbing blow-out, since compressed air can make components explode. Get at least three written bids and limit any deposit to 10% or $1,000, whichever is less.
Why did my pool pipes freeze over the winter?
Water was left in the pipes, pump, filter or heater when a hard freeze came. Ice expands, and once it blocks a pipe, pressure builds between the ice and a closed point, so the pipe or fitting splits, often where little ice formed. Hayward says to drain the pump and piping before freezing weather, and the Hayward and Raypak manuals exclude freeze damage from their warranties.