Arrived on site and diagnosed pipe movement in ceiling coming from the flush valve toilets. Each time the toilets are flushed, the pipe shakes back and forth. Recommend installing a pressure reducing valve. Currently the water pressure is above 80 psi. And spiked to 100 while monitoring the gauge. Found the thermal expansion tank waterlogged and no longer working. Also, the hot water recirculating pump is seized up and not functioning. Sending over the estimate for the PRV and will have the recirculating pump estimate sent over soon after. Left pressure gauge connected to system. This will tell us exactly what the pressure spikes to after hours.