Hot Tub Chemicals Guide | Lay-Z-Spa UK
2010-5-19 · Steps for Testing Pool or Hot Tub Water > Purchase pool test strips at your local home improvement or pool supply store (be sure to check the expiration date). > Use the test strips to check pools for adequate chlorine (1–3 parts per million [ppm]) and . check hot tubs for adequate chlorine or bromine (2–5 ppm). Pool and hot tub water pH
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