I use Salinity and love it. I actually use less salt and go longer in between water changes. As Deton8it pointed out, the cloudiness is to be expected. I typically make a 44 gallon tub of RE/DI and add the salt and a pump. I do the water change within 24-48 hours later. The corals all love it and really open up.
I used to do a 2 gallon water change every morning before noon, the corals responded beautifully but somewhere down the line..... I believe it was due to winter, and I keep my tub in the garage, and got away from it.
I believe you would really like the results after a few water changes Krista.