Accidental ethylene glycol addition

[greenblue]

Yesterday I accidentally added 2 quarts of a mixture used to prevent ice formation on airplane wing leading edges. Called TKS, it is 85% ethylene glycol, the rest being 5% isopropyl alcohol and 10% water. The pool is 22,000 gallons, SWG, pool always kept at test levels according to Trouble Free Pool recommendations.

I would be grateful if those of you with a stronger chemical background could opine on whether at this level of dilution
1) it should be considered dangerous
2) there is a possible mitigating action - or simply passage of time could help
3) or it's so bad I need to drain and refill

With thanks for any help that may be offered.

 

[JamesW]

I wouldn't be very worried. It will break down.

You can do a SLAM if there is any buildup of CC.

Maybe go to SLAM level for a few days to speed up the removal process.

Or, you can add an enzyme to speed up the removal process.

Pool First Aidâ„¢ - Natural Chemistry

naturalchemistry.com

 

[greenblue]

Thank you, James. I will test for combined chloramines which I can easily deal with and don't worry about. In my lack of chemical knowledge I am not sure if this is the only risk - if so I would be quite relieved.

 

[JamesW]

Allow the pump to run continuously for a few days.

Backwash the filter if it's sand or do a full breakdown and cleaning tomorrow for DE or Cartridge.

Go to SLAM level or use the enzyme to speed up removal.

By tomorrow, I would not have any concern about swimming in the pool.

 

[greenblue]

I appreciate your help.

 

[JoyfulNoise]

Luckily two quarts in 22,000 gallons is a small amount. However, for the record, you never want to use ethylene glycol in a pool. EtG is a central nervous system toxin that also causes liver and kidney damage as the human body converts it into oxalic acid. RV antifreeze is made from propylene glycol which is inherently much safer.

SLAM’ing the pool is highly advised.

 

[greenblue]

Yes it was partly the toxicity of ethylene glycol and partly my ignorance of possible reaction with chlorine that had me worried.

SLAM I shall.....