Pool Care Basics

How long to wait between adding pool chemicals

A pool is a wonderful addition to a home and a delight for an outing. Pools promote relaxation and fun between friends, family, or just yourself. Seeing as a pool is a stagnant body of water, and pretty much anyone can take a dip in it, it is vital that the pool is maintained as a clean, bacteria and algae-free environment. To do that, swimming pool chemicals become relevant.

Adding pool chemicals can seem like a daunting chore. From knowing the chemicals involved to applying them, wait times, appropriate swimming time, and more, it can be hectic. In this article, we will provide answers to some of the most nagging questions, how long to wait between adding chemicals and what are the dangers involved when adding pool chemicals.

Wait times for adding pool chemicals

The wait times between adding pool chemicals is usually around 10 minutes each, as that is also sufficient time for the chemicals to mix in the water. Users also under normal conditions can swim roughly 10 minutes after adding chemicals. If you turn on your pump on high and pour the chemical slowly in front of the return, you would find that they mix pretty quickly. In the same way, if you turn your pump on low and pour the chemical the wait time will be much longer.

Dye added to pool in front of return at high speed. The videos are saved as 10x so each min represents 10 min real time.

A good practice to hasten the mixing of chemicals in the pool, reduce the wait time between adding chemicals, and ensure they are thoroughly mixed is brushing. Brush after each application and mostly with the pump on high to get the best and quickest results. For more information on adding pool chemicals and which ones your should use in your pool please click here.

What not to mix together when adding pool chemicals

  • Chlorinating agents such as Trichlor and Cal Hypo should never be mixed together or in the same feeder as this can lead to an explosion. Despite being chlorinating agents, they are incompatible.
  • Do not add at the same time or mix muriatic acid and chlorine. Such interaction produces a toxic gas that is dangerous to health even in small amounts.
  • A good rule of thumb is to never mix pool chemicals with each other.
  • After adding Calcium Hypochlorite a user should always wait 24 hours before adding chemicals that would alter their pH. Adjusting pH or Total Alkalinty after adding Calcium Hypochlorite can cause the calcium to temporarily cloud the water.