When a pool turns completely green, most homeowners assume it’s a lost cause—or that it will take weeks to recover. Recently, we completed a full green pool cleanup in Fresno that shows how quickly and effectively the right process can bring a pool back to life.
The Problem: A Completely Green Pool
The customer contacted us after their pool had turned dark green and completely unusable. Visibility was near zero, and algae had taken over the entire system.
This type of situation is common when:
-
Chlorine levels drop too low
-
Filtration isn’t running properly
-
Debris and algae build up over time
-
The pool is left untreated over the winter
At this point, a simple chemical treatment isn’t enough—this requires a full reset.
What the Customer Needed
The homeowner wanted:
-
A fast turnaround so the pool could be used again
-
A complete cleanup (not just a temporary fix)
-
Clear, balanced water that would stay clean
Our Diagnosis
After inspecting the pool, we found:
-
Extremely high TDS (Total Dissolved Solids)
-
High CYA (stabilizer) levels, making chlorine ineffective
-
Heavy debris and sludge buildup throughout the pool
-
A filtration system that needed cleaning to prevent recontamination
With water chemistry this far out of range, treatment alone would be inefficient and costly. The best solution was a full drain and chlorine wash.
The Process: Step-by-Step Green Pool Restoration
1. Draining the Pool & Removing Sludge
We safely drained the pool and removed all debris and sludge buildup from the bottom and surfaces.
Caption: Green pool before cleanup – heavy algae and debris buildup in Fresno
2. Chlorine Wash Treatment
Once drained, we performed a chlorine wash to kill and remove algae from all surfaces.
We typically apply chlorine using a sprayer for even coverage, but a simple watering can can also be used effectively for smaller jobs.
This step is critical because it:
-
Eliminates embedded algae
-
Prevents rapid regrowth
-
Restores the pool surface
Caption: Chlorine wash in progress removing algae from pool surfaces
3. Filter Cleaning
Before refilling, we cleaned the filtration system to ensure no algae or debris would circulate back into the pool.
Caption: Cleaning the pool filter to prevent recontamination
4. Refilling the Pool
After cleaning and treatment, we began refilling the pool with fresh water.
5. Startup Chemicals & Water Balancing
Once the pool was filled, we returned the following day to complete startup and balancing:
-
Added calcium increaser to raise calcium hardness
-
Added conditioner (also known as CYA or stabilizer)
-
Adjusted pH levels
-
Added chlorine to properly sanitize the water
This ensures the pool is not only clean—but stable and ready for long-term use.
The Result: From Green to Crystal Clear
After completing the full process, the pool was fully restored:
-
Crystal clear water
-
Balanced and stable chemistry
-
Fully functional filtration system
Caption: Fully restored pool after green pool cleanup in Fresno
Why Green Pools Need Professional Treatment
Trying to fix a green pool without draining can be:
-
Very costly
-
Time-consuming
-
Labor-intensive
In many severe cases, a “green-to-clean” chemical approach takes longer and requires more chemicals than a full drain and treatment.
A proper drain and chlorine wash:
-
Resolves the issue much faster
-
Reduces overall chemical costs
-
Produces more reliable, long-lasting results
Need Green Pool Cleanup in Fresno or Clovis?
If your pool has turned green or cloudy, we can help restore it quickly and correctly.
At Benchmark Pool Supply, we specialize in:
-
Green pool cleanups
-
Pool draining and chlorine washes
-
Filter cleaning and equipment checks
-
Water balancing and startup treatments
Contact us today to get your pool back to crystal clear.
Frequently Asked Questions
How do you fix a green pool in Fresno?
Fixing a green pool in Fresno often requires removing algae, draining the pool in severe cases, cleaning surfaces, and rebalancing the water with proper chemicals.
What is CYA and why does it matter in pool cleanup?
CYA, also known as stabilizer or conditioner, protects chlorine from sunlight, but when CYA levels are too high, chlorine becomes less effective and can lead to green pool conditions.
Why is draining a pool sometimes necessary?
Draining a pool is necessary when TDS and CYA levels are too high and algae buildup is severe, making chemical treatment alone ineffective.
How long does a green pool cleanup take?
A green pool cleanup typically takes one to a few days depending on severity, including draining, cleaning, refilling, and chemical balancing.
Is a chlorine wash effective for algae removal?
A chlorine wash is highly effective for algae removal because it kills and removes algae directly from pool surfaces, preventing quick regrowth.
