I have a new 4500 psi cylinder that I can’t find any body to fill to the full 4500psi, the most I can get is 4000psi from one scuba shop, does anyone know of anyplace in the Philadelphia area where I can get it fully charged? Thanks
Invest in a Yong Heng until you decide to upgrade. They work well and if yo take care of it, it will most likely last a while. Do your research though. Knockoffs are out there. For the price they are hard to beat and will pay for itself in air.
Will a yong heng fill a 88cf scuba tank? Or is it just for filling my airguns directly?
Have you tried a fire station?
You might also look up where to get the bottle hydro tested. They might be able to point you in a direction for getting it filled all the way.
Most fire stations won't touch them due to potential liability. My local dive shop fills my 4500 psi scuba tank. They like to have it overnight, to top off in the morning. It gets very hot in filling to that level, and overnight it will lose some pressure.