I'm actually not starting up or closing the pool, just doing a drain and refill.
I bought my house last summer. The last owners didn't take great care of the pool. The hardness is through the roof.
So I'm going drain and refill now that the season is over.
Anyone that has had to do a refill have any tips on balancing after the fact?
I've heard horror stories of spending hundreds of dollars on chemicals after fresh refills.