A green pool looks like a disaster, and homeowners often assume it means draining, acid washing, or replastering. Usually it doesn’t. Most green pools in the Birmingham area can be brought back chemically in under a week, and Golden Poolscapes does this work regularly.
How Pools Turn Green
It’s almost always one of a few things. A pump or filter failed and circulation stopped. The family traveled and nobody serviced the pool. A run of storms diluted and overwhelmed the sanitizer. Or stabilizer built up high enough to lock the chlorine out of doing its job.
Whatever started it, algae needs only warm water and a few days without effective sanitizer. In an Alabama July, a pool can go from clear to green over a long weekend.
Our Recovery Process
Assessment First
We test the water and inspect the equipment before treating anything. If the pump or filter is the reason the pool went green, chemicals alone won’t hold — the equipment problem has to be addressed as part of the recovery.
Debris Removal
Leaves and heavy debris come out first. Organic material consumes chlorine continuously, so leaving it in place means fighting the treatment the whole way.
Chemical Correction and Shock
We correct pH and alkalinity so the chlorine can actually work, then shock at the level the severity calls for. If stabilizer is locking up the chlorine, partial draining may be necessary — and we’ll tell you before doing it.
Filtration and Brushing
The filter runs continuously while we brush walls and floor to break algae loose. This stage does most of the real work, and it’s why recovery takes days rather than hours.
Clearing and Rebalancing
Water passes through green to cloudy grey-blue to clear. We return to backwash or clean the filter as it loads up, and finish with a full rebalance.
How Long It Takes
A pool caught early, still translucent, often clears in two to three days. A properly green pool typically runs three to five days. A dark green or black pool where the floor isn’t visible can take a week or more with repeated filter cleaning.
We’ll give you a realistic estimate after seeing it, including the honest answer when a pool is far enough gone that draining is genuinely the better path.
When Draining Is Actually Necessary
Draining is a last resort, not a first move. It carries real risk — an empty pool can pop out of the ground under hydrostatic pressure, and plaster that dries out can crack. We drain only when chemistry can’t reasonably fix the problem, such as extreme stabilizer levels or standing water that has become a genuine health hazard.
Keeping It From Coming Back
Recovery fixes the symptom. If the cause was a failing pump, an undersized filter, or simply no consistent maintenance, the pool will go green again. We’ll tell you which it was, and you can decide from there whether ongoing service makes sense.
Get a Green Pool Assessment
Send a photo of the pool along with its approximate size, and we can usually give you a good sense of what the recovery will involve before we ever come out.
