| Cover Page | Jul. 01, 2022 |
| Cover [Abstract] | |
| Document Type | 8-K/A |
| Document Period End Date | Jul. 01, 2022 |
| City Area Code | 855 |
| Local Phone Number | 480-5050 |
| Title of 12(b) Security | Common Stock $.01 par value |
| Entity Incorporation, State or Country Code | DE |
| Entity Registrant Name | ZURN ELKAY WATER SOLUTIONS CORPORATION |
| Entity File Number | 001-35475 |
| Entity Tax Identification Number | 20-5197013 |
| Entity Address, Address Line One | 511 W. Freshwater Way |
| Entity Address, Postal Zip Code | 53204 |
| Trading Symbol | ZWS |
| Security Exchange Name | NYSE |
| Amendment Flag | false |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Central Index Key | 0001439288 |
| Entity Emerging Growth Company | false |
| Entity Address, City or Town | Milwaukee, |
| Entity Address, State or Province | WI |
