I can not make that sound right. For anyone who is at 20 psi With all the pump primed and operating, that Appears Alright. But, in the event you say it stays at twenty or higher when you get rid of key, either your gauge is not Doing work or https://www.profi-poolwelt.de/4-5-4-6-m-pool-abdeckplane-poolabdeckung-450-winterplane-rund-460.html