Swimming pool chemical incident

According to the BBC, a man was treated in hospital after accidentally mixing chemicals used for cleaning a swimming pool.

Emergency services were called out to reports of a chemical incident at Glenwood High School on Saturday.

They discovered that a member of staff had accidentally mixed chemicals used for cleaning the swimming pool.

That pool chemicals are extremely dangerous is so often forgotten. I have come across numerous incidents of explosions, vapor discharges or wild, out of control reactions due to the mixing of different pool chemicals. Possibly the most frightening and perhaps the easiest mix to “accidently” make is the combination of dichlor and calcium hypo with some water added to it.

In pools where the chlorine needs to be predissolved and the pool operator mixes some dichlor and cal hypo in the same bucket, the resulting explosion and thick pungent cloud of yellow “mustard gas” is horrifying to witness. The gas explodes upwards in a typical mushroom shape. Thankfully, people unfortunate enough to be nearby when it all goes bang generally remain below the cloud of gas.

21 thoughts on “Swimming pool chemical incident

  1. I liked your article because it helps people stop doing the cleaning of their pools. Not only in a swimming pool, but even in a pool, with less people using it, if it’s not a Pro doing the maintenance, as you explain in your article, the risk of skin problems is big, bacteria and infections are so common and long to overcome.
    Better to pay a Pool Service for sure.
    Thank you for the article!

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