How to Keep Your Blue Pool Water From turning Green so often

Keep your pool water clear blue and healthy.

Having a home swimming pool is a good way to relax, enjoy the outdoors and get some exercise. Unfortunately, there's a lot of maintenance to do to keep the pool attractive and healthy. Often, when the pool's chemistry gets out of balance, the pool develops algae growth, which turns your pool's water from blue to green. Take steps to cure the green pool water, but it's better to prevent green algae in the pool water in the beginning.

Things You'll Need

• UV sanitizer
• Knife
• Tube clamp

Instructions

1. Install a ultraviolet sanitizer on your pool. Turn off the pool pump and disconnect the water return line. How you disconnect your line depends on what your setup is. If your lines have a strong connection, cut the line and insert the sanitizer that way.

2. Connect the output from the pool filter to the input of the sanitizer by pushing the tube over the input connection while twisting the tube back and forth slightly. If your return flow tube is slightly larger than the connection, tighten the connection with a tube clamp.

3. Turn on your pool pump. Check for leaks. If you find leaks, they must be addressed before turning on the sanitizer.

4. Plug in the sanitizer. Determine if the sanitizer light is on and functioning by waiting until dark and seeing if there's a blue glow around the sanitizer.

Tips & Warnings

• If your water return tubes are much larger than the connections on your sanitizer, use step down connectors, available from plumbing supply houses, on both sides of the sanitizer connection.

• Do not look directly into the UV sanitizer light; this can burn your retina and cause blindness.

• Make sure all electrical plugs are properly grounded near water.

References

• National Institute of Technology, Tiruchirappalli: Swimming Pool Chemistry
• Ask Alana a Question: Ultraviolet Sanitizers
• KOI Pond Guide: UV Sanitizer