Is there any way to pressure test laterals

[nicole12]

I put a ball valve on the return line that should cut down on the hp of the filter. Also the package was sold as a set and I'm told that this filter/pump combo is ok. And also the first year that I had the pool the pool was sparkling clean. I would only vacuum once a week. Then the following year the standpipe had some problems so I replaced that and have had problems every since. The filter is a 150lb Astral Millenium 17"