I am new to this forum and have lived in a house with a pool for the last 4 years.
Recently, since we open the pool for the season, I have noticed a strange odor from the skimmers and also from the pump basket. It is a fishy/lake water smells. I use test strips to check chlorine levels and it is in good condition. I added chlorine and the next day the smell is still there. The pool has a chlorinator (Nature2 Zodiac Pro G Plus) and it is filled with tablets that I purchased this year. I also take a sample from time to time to a local pool supply store. I last shocked the pool on the week of the 4th of July and then another smaller shock on the 15th. The pool holds about 26,000 gallons of water is a lazy L shape and it is vinyl. On the shock around the 4th of July I used 10 gallons as there was some residual that I need to burn off and then more to balance the water. On the 14th I used 2 gallons. Then I add around 2 lbs of powder chlorine once a week. The smell on the pump basket seems to never go away. Any ideas?
Thanks. Be well