I stopped by the home i am in contract to purchase next month this past weekend so the seller could show me how he shuts down various things for winter (pool,AC system, outdoor spigot, how to use the generator) When mentioning that he closed the pool and purged/vacuumed all the lines he said that he put antifreeze in the lines. He said "you can just use the stuff from the store" if i recall correctly, to which i said 'the green stuff?' (not being familiar with any specific pool antifreeze) and he said yes. (i was taking in a lot of information at the time so it didn't hit me immediately). I realized later that he was referring to automotive antifreeze (not RV or Pool antifreeze) which is ethylene glycol based and is toxic to humans and animals. I searched on google related to people using it for winterization of swimming pools and unsurprisingly it belongs nowhere near a swimming pool. I now have the following concerns:
1. if he did indeed use ethylene glycol based antifreeze how do i deal with the situation in spring to avoid a toxic/health hazardous situation?
2. is there a way to test for its presence in the water?
3. if it is in the water, can it be filtered out/removed without draining the pool?
4. will this damage the pool/plumbing itself?
5. if he has used it in the past could it cause any damage?
I appreciate any replies as i am quite concerned about this issue
It its a 30k gallon concrete pool with a vinyl liner with a SWG installed in 2011. I will be taking possession of the house at the end of november so the pool will be closed until may.