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In an effort to get an idea of TDH and since it's hard to measured buried pipe, I installed a vacuum gauge on the suction side of my 1.5HP WhisperFlo pump (WFE-6) that has a 1.5HP (2.25 THP) motor. It’s reading 6.5 inches Mercury. The filter pressure gauge is reading 22 PSI (recently...

Hello TPF community! First time poster here, be gentle :) I have an IG gunite pool with an elevated spa that waterfalls into the main pool. There are also two additional aesthetic waterfall features on either side of the main spa spillway. Since I have owned the home (10 years) the pressure...