What is a safe FCL to swim in after shocking? I shocked around 30 ppm to kill off all the algae and want to know at what FCL level can we start swimming again? My daughter wants to jump back in the pool and we only have a few days of summer left. Thanks.
Safe FCL to swim after shock?
- Thread starter imalittleturt
- Start date
Yep, many of us think that anything between the minimum level and below shock level, based on your CYA, is perfectly fine. :-D
The EPA recommend no higher than 4ppm so take into account your CYA level and keep your childrens lungs safer.
The EPA recommendation is based on their drinking water standard which is 6-8 quarts consumed per day. Several states have 10 ppm FC as a limit for commercial/public pools. I'll write separately in The Deep End later on this week about a recent report on children's asthma and outdoor pools (a follow-on to an earlier study on indoor pools).