As winter ends in New Jersey, many pool owners open their pools only to find the water has turned green. This is a common issue caused by algae growth, poor water circulation, and unbalanced chemicals. If your pool looks green or cloudy, don’t worry, there are ways to fix it quickly.
In this guide, we’ll explain why pools turn green and how to restore clear, clean water fast.
Why Does Pool Water Turn Green?
Green pool water is usually caused by algae growth. During winter, your pool sits unused, allowing debris, bacteria, and algae to build up.
Common causes include:
- Lack of proper chemical balance
- Poor filtration or circulation
- Debris left in the pool
- Delayed pool opening
When temperatures rise, algae grow rapidly, turning your pool green.

How to Fix a Green Pool Fast
Fixing a green pool requires more than just adding chlorine. Here’s the proper process:
1. Remove Debris
Start by removing leaves, dirt, and debris from the pool. This helps improve water circulation and effectiveness of chemicals.
2. Brush Pool Surfaces
Brush the walls and floor to loosen algae buildup so it can be filtered out.
3. Shock the Pool
Add a strong chlorine shock treatment to kill algae and bacteria.
4. Run the Filtration System
Keep your pump running continuously to circulate and clean the water.
5. Balance Water Chemistry
Adjust pH, alkalinity, and chlorine levels to restore safe swimming conditions.
Can You Fix a Green Pool Yourself?
While minor cases can be handled DIY, heavily green pools often require professional treatment.
DIY challenges:
- Multiple chemical treatments needed
- Takes several days or weeks
- Risk of incorrect chemical balance
In many cases, hiring a professional pool cleaning service is faster, safer, and more effective.
Professional Green Pool Cleanup in New Jersey
At Fresh Pool Service, we provide expert green pool opening and pool cleaning services across New Jersey.
Our process includes:
Full debris removal
Algae treatment and shock
- Water balancing
- Equipment check
- Complete pool cleaning
We help restore your pool to clean, clear, and swim-ready condition quickly.
We proudly serve:
- Bergen County
- Passaic County
- Morris County
- New Milford and nearby areas
When Should You Call a Professional?
You should consider professional help if:
- The pool is dark green or black
- Water is not clearing after treatment
- You don’t have time for multiple cleanings
- The equipment is not working properly
Fast action prevents bigger problems and costly repairs.
Get Your Pool Back to Crystal Clear
A green pool doesn’t have to ruin your season. With the right approach—or professional help—you can restore your pool quickly and safely.
Fresh Pool Service is ready to help you get your pool clean and ready to enjoy.
Contact us today to schedule your green pool cleanup service in New Jersey.
