ServicesFilter Cleaning
Pool Filter Cleaning in Florence
We open your filter, inspect every part and tell you what we found before we clean anything. Cartridges, DE grids and sand beds get the right method for their media, and you get a written pressure reading before and after.
What a Filter Cleaning Does for Your Pool
Your filter is where everything the skimmer misses ends up: dust, sunscreen oil, pollen, dead algae and fine calcium particles. As that debris packs into the media, water has a harder time getting through. Pressure on the gauge climbs, flow back to the pool drops and your sanitizer has to work harder to keep the water clear.
A proper cleaning restores flow by removing what is lodged deep in the media, not just the loose layer on top. Hard water adds a second problem. Calcium bonds to cartridge pleats and DE grid fabric, and once it sets, a garden hose will not move it. That takes a degreaser and an acid soak in the right order.
We start every job with an inspection. Before we recommend a soak, a new cartridge or a repair, we show you the condition of the media and the seals, and we explain what each finding means for your pool.
What Our Filter Cleaning Includes
Pressure baseline
We record the gauge reading with the pump running before we shut anything down. That number, compared to the clean reading at the end, tells you how restricted the filter was.
Cartridge cleaning
Each cartridge is pulled and rinsed pleat by pleat with a fan nozzle, top to bottom. Oily or scaled cartridges get a degreaser soak first, then an acid soak if calcium is present. Degreasing first matters, because acid locks oils into the fabric.
DE grid teardown
We remove the grid assembly, separate the grids from the manifold and wash each one. We check the fabric for tears and the manifold and standpipe for cracks, then recharge the filter with the correct amount of fresh DE for its square footage.
Sand filter service
We backwash, then check the sand for channeling and clumping. If sand is showing up in the pool, we look at the laterals, since a cracked lateral lets media pass straight through.
Seals and lid
The tank O-ring gets cleaned, inspected for flat spots or cracks and lubricated with a silicone-based lubricant. Petroleum products swell rubber, so we do not use them.
Restart and findings
We bleed air from the system, confirm the pump primes and record the new clean pressure. You get a plain account of what we found and anything that needs attention.
Signs Your Filter Needs Cleaning
Pressure 8 to 10 PSI above clean
Most filters are due when the gauge reads 8 to 10 PSI above the clean starting pressure. If you do not know your clean number, we will set one at the first visit.
Weak flow at the return jets
When the water coming back into the pool feels softer than it used to, the filter is usually choking the flow, assuming the pump basket and skimmer are clear.
Cloudy water with good chemistry
Balanced readings with hazy water often point to the filter. Either it is too clogged to catch fine particles, or a torn grid or cartridge is letting them through.
DE or sand on the pool floor
Fine gray powder near the returns means a DE grid or manifold has failed. Sand in the pool points to a broken lateral or standpipe.
After a dust storm or algae bloom
A monsoon dust storm can load a filter in a single afternoon, and dead algae from a green pool clogs media fast. Both call for a cleaning sooner than your usual schedule.
How the Visit Runs
- 1
Read and shut down
We note the running pressure, turn off the pump and cut power at the breaker. Then we open the air relief valve to bleed pressure off the tank before the clamp comes loose.
- 2
Open and inspect
We remove the lid or clamp band and pull the cartridge, grids or check the sand. You see what we see, including torn pleats, cracked manifolds or worn seals, before any recommendation.
- 3
Clean the media
Cartridges and grids are rinsed, then soaked if oil or calcium has set into the fabric. A soak can mean we return later to reinstall, and we will tell you that up front.
- 4
Reassemble and test
Seals are lubricated, the tank is closed and the clamp is tightened evenly. We restart the pump, bleed the air, check for drips at the lid and record the clean pressure for your next comparison.
What Moves the Price
Filter cleaning is priced by the work your filter actually needs, and we quote it after we know the type and size. If the inspection turns up a problem, we explain it and price it separately so you can decide. Nothing is replaced without your go-ahead.
- Filter type and size
- A single large cartridge is quicker than a four-cartridge filter or a DE unit with eight grids that each need separate washing and inspection.
- Scale and oil buildup
- Media that only needs a rinse costs less than media that needs a degreaser and acid soak, which adds chemicals and often a second trip.
- Parts found worn
- Torn cartridges, cracked grids, broken laterals or a flattened O-ring add parts cost. As an ROC licensed company, we handle these repairs ourselves, and all repairs are completed in-house, not subcontracted.
- Fresh media
- DE filters need a new charge after every cleaning. Sand filters occasionally need the sand replaced once it has packed or channeled.
Filter Cleaning Questions
Something not covered here? (520) 645-8108
How often should my filter be cleaned?
Let the pressure gauge decide rather than the calendar. Many cartridge and DE filters around Florence need cleaning a few times a year, more often after dust storms or heavy swim seasons. When the reading sits 8 to 10 PSI above your clean number, it is time.
Can I just hose off the cartridge myself?
Hosing removes the loose surface layer, and it is a reasonable step between cleanings. It will not remove oils or calcium set deep inside the pleats, which is why pressure creeps back up quickly. A degreaser soak followed by an acid soak, in that order, restores the fabric.
Do I need a new cartridge or just a cleaning?
We check the pleats, end caps and core before answering. If the fabric is intact and holds its shape, cleaning is usually enough. Frayed, flattened or brittle pleats, or a cracked end cap, mean the cartridge can no longer filter well and replacement makes more sense.
What happens if you find a broken part?
We stop, show you the part and explain what it does and why it failed. You get the repair price before any work starts, and nothing is replaced without your go-ahead. If the fix is bigger than the filter, such as a pump or valve problem, we cover it under our pool repair service.
Can filter cleaning be added to weekly service?
Yes. Many customers on our weekly pool cleaning have filter cleanings scheduled when pressure readings call for them. Ask about it when you call for your free quote, and we will explain how it fits your pool.
Find Out What Your Filter Is Hiding
Tell us your filter type and what the gauge reads, and we will explain what a cleaning involves for your pool. We serve Florence and nearby towns including San Tan Valley, Coolidge and Queen Creek.