"Stuart Benoff" wrote in message news:echv51
The pump is sending water to the wall outlet and then the cleaner is
attached to the wall. The 14-15 PSI reading is from the wall outlet
without the cleaner attached. When I take the measurement from the end
of the hose that attaches to the cleaner it's at 11 PSI. The hose is a
5/8" hose and is about 22 feet long.

All these measurments are going to vary with the water flow. You need
to measure with the cleaner attached and operating, with no leakage which
will lower the reading. Where the booster pump gets its water will affect
the reading. If it connects to the water return line to the pool, it will start
with low pressure. If it connects to the outlet of the pump, before the
filter, it will start with higher pressure and end up with a higher boosted
pressure.

Bob