Common Pool Water Problems and How to Fix Them

Common Pool Water Problems and How to Fix Them
Introduction

There’s nothing more frustrating than walking out to enjoy your pool, only to find green water, cloudy patches, or strong chemical smells. The problems can surprise even experienced pool owners from time to time yet most issues can be fixed in a short period with the right tools and knowledge.

At Deep Blue, we believe in making pool care simple. With our high-quality chemicals, simple dosing tools and step-by-step guides, you can quickly solve problems and stop them from reoccurring. In this article, we are going to address the most common pool water problems and how to fix them with the use of Deep Blue’s expert-tested solutions.

1. Cloudy Water

Causes:
Unbalanced water chemistry especially high pH or low chlorine levels.
A dirty filter or weak water circulation.
The presence of fine particles or organic waste.
Solutions:
Test water for pH, chlorine, and alkalinity
Use Deep Blue Shock Granules to shock the pool, either with chlorine or without chlorine.
Use a Deep Blue Pool Clarifier to bind the tiny particles so they are easily filtered out.
Clean or backwash the filter thoroughly

2. Green Water (Algae Bloom)

Causes:
Too little or no chlorine.
Warm temperatures and poor circulation.
No preventative algaecide.
Solutions:
Test chlorine levels
Use double the usual amount of shock to the pool.
Brush all surfaces with a Deep Blue pool brush.
After shocking, apply Deep Blue Algaecide.
Vacuum dead algae and clean the filter.

3. Strong Chlorine Smell

Causes:

This isn’t from chlorine — it’s from chloramines, which form when chlorine binds with organic contaminants.

Solutions:
Shock the pool to remove chloramines
Check the free chlorine level after treatment and ensure that it is 1-3 ppm.

4. Eye or Skin Irritation

Causes:
Too much or too little pH or too much chloramines.
Overuse of harsh chemicals
Solutions:
Test and adjust pH to 7.2-7.6 using Deep Blue pH+ or pH-.
Non-chlorine shock for gentle oxidation.
Rinse swimmers before entering to reduce contaminant load.

5. Foamy Water

Causes:
Too much algaecide, especially non-foaming types.
Lotions, detergents or softeners have built-up.
Solutions:
Use Deep Blue Foam Reducer
Drain and dilute water if foam persists.
Switch to non-foaming algaecide

6. Staining or Scaling

Causes:
High calcium hardness or metal content.
pH and alkalinity imbalances.
Solutions:
Use Deep Blue Scale & Stain Remover.
Water balance must be done with proper pH, alkalinity and calcium levels.
Consider using metal sequestrants if you are using hard water or well sources.
Prevent Problems with Deep Blue
Test the water 2-3 times per week.
Use our easy-to-follow chemical guides.
Preventative algaecide and clarifier as part of your weekly routine

All Deep Blue products are scientifically tested and come with clear instructions for accurate, safe use. As a proud BISHTA member, we follow all best practices for home pool safety.

Loyalty Programme and Support

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Get in touch with our expert support through the Contact Page
Maintenance reminders and how-to guides

Conclusion

Pool water problems happen — but they’re almost always fixable. With the right products, a consistent routine, and support from Deep Blue, you can enjoy clean, clear, and balanced water all year long.

FAQs

Why does my water go cloudy after shocking?

This is temporary and means dead algae or debris are being oxidised. Use a clarifier and clean your filter.

How can I stop green water from coming back?

Regularly keep the chlorine level at 1-3 ppm and use algaecide every week as a preventative measure.

Is foamy water harmful?

It’s not dangerous, but it indicates build-up of unwanted substances. Treat with anti-foam and adjust your chemical routine.

How do I know if staining is from metals?

Brown or green stains are common with iron or copper. Use a metal sequestrant and test your water source.

Do Deep Blue products work in hot tubs?

Yes — we offer a full line of spa-safe and non-chlorine alternatives suitable for all setups.