On my domestic system I have a Tait pump with pressure switch & a glassfibre Wellmate pressure tank (bladderless I presume in my ignorance).
The water pressure is fine but the pump switches on every 10 minutes at 20 psi & switches off at the, I assume correct 60 psi.
As soon as it switches off the gauge starts dropping & in 10 minutes its back down to 20 psi.
I would appreciate any help, thank you.

Colin Bryant