Tentamen (uitwerkingen)
Pool Operator Study Guide| 51 QUESTIONS| WITH COMPLETE SOLUTIONS
- Vak
- Instelling
Pool Operator Study Guide| 51 QUESTIONS| WITH COMPLETE SOLUTIONS Ideal bromine level in a pool and spa is: 3ppm to 6ppm Ideal chorine level for a pool is: 1ppm to 5ppm Maximum level of chlorine in a pool is: 5ppm If you see bubbles coming up from a return, the possible cause could be a ba...
[Meer zien]