If your Nugsmasher is not holding pressure it is most likely that you have air in the system and your Nugsmasher must be purged of air (BLEED). This typically occurs when the unit has been transported or has had a rough shipment and is detailed in below link.
Bleed how to video:
https://nugsmasher.com/nugsmasher-tutor
You may need to do this process a couple times but should solve loss of pressure issue. you can always email or call us for more help email
Nugsmasher Support
951 272 9800