FAQ

Pool FAQ


Here at Johnson Pools Inc., we receive a lot of questions about how to keep your pool looking great and running properly. We decided to compose a list of some of our more frequently asked questions. If you have any more questions about anything pool-related, feel free to give us a call.

What are the proper levels for my pool chemicals?
  • pH - 7.4 to 7.8 
  • Alkalinity - 80 ppm to 160 ppm 
  • Chlorine - 1.5 to 3.0 depending on sunlight/usage/foliage 
  • Calcium - 275 ppm to 350 ppm 
How often should you replace your liner?
Every 5 to 7 years per the manufacturer's recommendation. 

How often should you backwash?
Once a week. You can go up to two weeks as long as the pressure doesn’t rise too high.  

How often should I check my chemicals?
You should check the pH, chlorine, and alkalinity once a week and calcium every three months.

What causes the Polaris to not move around the pool?
Try the quick disconnect on the side of the pool. The screen may be filled with debris. You can also contact us to have a certified service technician diagnose the problem for you.

Why is sand going back into my pool?
The sand filter may not have been properly backwashed and rinsed, or a lateral inside the filter may be broken. Contact us to have a service technician diagnose the problem.

What is the best type of filter for a swimming pool?
D.E. is the most efficient. The next two we recommend are cartridge filters and sand filters. Sand filters are often the easiest to use.

My motor is making a loud squealing noise. What’s wrong?
In most cases, the bearings are bad. You will need to replace the motor if this is the problem. 

How often should I run my pump?
Most pools take 6-8 hours to turn the pool water over completely. The water should be turned over at least twice in a 24-hour period. 

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