There are two bands by this name:

1. Drowning Pool is an American rock band formed in Dallas, Texas, in 1996. The band’s name was inspired by the 1975 film "The Drowning Pool". Since its formation, the group has included guitarist C.J. Pierce, drummer Mike Luce, and bassist Stevie Benton, along with several different lead vocalists over the years.

The band released its debut album, "Sinner", in 2001. Original vocalist Dave Williams died on August 14, 2002, with the cause reported as heart disease. In 2003, Jason Jones joined as the new lead singer and recorded the album "Desensitized" (2004). He departed in 2005, citing musical differences.

Ryan McCombs, previously of the band SOiL, then became the band’s vocalist and recorded two albums, "Full Circle" (2007) and "Drowning Pool" (2010), marking the first time the band retained the same singer for more than one studio release. McCombs left the band in November 2011 to rejoin SOiL.

He was replaced by Jasen Moreno, who appeared on three albums with the band: "Resilience" (2013), "Hellelujah" (2016), and "Strike a Nerve" (2022), making him the group’s longest-serving vocalist at that time. Moreno left Drowning Pool in March 2023, after which McCombs returned as lead singer.

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2. Drowning Pool was an avant-rock quartet from Los Angeles, consisting of Andrew Crane on vocals, Adam Elesh on guitar, and Brett Smith on bass. The group released several collections of recordings, including "Drowning Pool" (1986), which compiled material previously issued on early cassette releases, the double album "Satori" (1987), the EP "Nierika" (1988), and the instrumental album "Aphonia" (1989). Their music has been described as combining elements of new wave metal, psychedelia, world music, ambient, and industrial.

The band later changed its name to Mumbles, after which no further documented activity has been widely recorded.