Home / Home / Test, then raise pH and alkalinity.Home home maintenance cleaningTest, then raise pH and alkalinity.That’s the correct approach after heavy rain. Don’t just dump chemicals in. Search Amazon As an Amazon Associate, Work Notes may earn.Related NotesAnchor cleaning to existing habits.Backwash when the pressure tells you to.Backwash your DE filter when the pressure gauge tells you to.Binoculars are your best friend for roof inspection.Check for air leaks first.ExploreThe 'Baby Blue Shuffle in D Major': A Forgotten Bridge Between Pink Floyd and Syd Barrett’s Solo WorkThe Babyface-Produced Track on the Rolling Stones' 'Bridges to Babylon'The Backstory of 'Brown Sugar' — Jagger's Late Regret and How the Verses Came TogetherThe Backstory of 'Out of Tears' from Voodoo LoungeThe backwards guitar solo belongs to "Tomorrow Never Knows.Previous Testing an extension cord with a multimeter is easy. Do it before tossing it.Next Test your pool water twice a week during swim season.