The eastern boundary of the Louisiana purchase was the Mississippi River, from its source to the 31st parallel, though the source of the Mississippi was, at the time, unknown. The eastern boundary below the 31st parallel was unclear.
An A-frame pool ladder is a great above ground pool ladder designed for stability and safety that is perfect for above ground swimming pools Pool owners with small children can provide an extra layer of safety with the fold up mechanism or locking gate.
Lowering the pH level of a swimming pool requires adding an acid to the water, usually muriatic acid or sodium bisulfate. Start by taking a reading of the pool's pH level using a test strip and drop kit. The ideal range is between 7.0 and 7.6. If the reading is above this range, add a solution of water and acid.