You can buy a decent 4-way tester for about $35. Will test soil ph, soil moisture level, soil fert level and light level. Go to any hydro shop or order off of Amazon.ive let my water sit out for 24 hours open so i think my water is good but where and the cheapest ph tester
just cuz you let it sit out for 24 or more hours doesnt mean its at the ph needed for your plants. get your tester and some ph up and downive let my water sit out for 24 hours open so i think my water is good but where and the cheapest ph tester