When you ordered the CSV1A you could have requested it set at 50 PSI. If you did not give us a pressure to set, it will be close to 50 PSI but has not been tested. Adjusting the CSV1A is easy. Just make sure to run about 3 GPM, which is the same as most showers, and turn the bolt on the CSV until it is holding 50 PSI constant. Call if you need help and we will talk you through it.