All cylinders must have current hydrostatic inspections and visual inspections before they can be filled.  All cylinders are filled to their working pressures.  For a standard aluminum 80 cu. ft. tank with a working pressure of 3000 psi, a normal fill will be 2800-3200 psi. 

We do fill tanks with working pressures up to 3500 psi.  Please drop your high pressure tank off early and ask when it will be ready.  High pressure cylinders require a little longer to fill than normal cylinders.

We do not over pressurize tanks and we do not fill carbon fiber paint ball gun cylinders.

Tank pressure gauges are available at both stores.  Please check your fill before leaving the store.  If you have a fill that is more than 200 psi below the working pressure of the cylinder, please ask the store staff to top off your tank or check for a leak.

Standard mixes for Nitrox are NOAA 1 (32% oxygen) and NOAA 2 (36% oxygen).  Custom blends up to 40% oxygen are also available with 24 hours notice.

All cylinders are inspected by certified inspectors, properly trained in cylinder inspections to PSI, OSHA, and CGA Standards. The cylinder is inspected for current and appropriate markings then the tank is completely drained, all accessories, stickers and the valve will be removed.

The external inspection will identify heat damage, re-painting, odors, bows, bulges and line corrosion forming around tank boots.  The internal inspection will identify cracks, pitting, surface rust and oxidation. The threads of the cylinder are inspected for cracks, missing and\or damaged threads.  

The valve is then inspected for the correct burst disk, the o-ring is replaced and the dip tube is verified to be present and secure. The threads are greased with DOW Corning 111 to prevent electrolysis. If the cylinder has meet all standards with in the PSI, OSHA and CGA Standards, the cylinder is reassembled and issued a current visual inspection sticker, good for one year with in the same month.

Visual inspections take one business day to complete and are filled after the inspection.  If the cylinder does not meet standards the tank will be permanently marked and condemned for service.

Hydrostatic inspections must be conducted once every 5 years.  The cylinder is pressurized to 5/3 the working pressure of the cylinder and the expansion and contraction of the cylinder is measured.  Hydrostatic inspections require a minimum of 1 week to complete.

After the cylinder has successfully completed a hydrostatic test, it is visually inspected and filled.

Cylinders are visually inspected, completely disassembled, and cleaned using a special O2 compatible cleaner from Global Manufacturing.  All parts are cleaned in the ultrasonic cleaner, rinsed and reassembled using ONLY CHRISTOLUBE lubricant.  All stickers and markings are checked to PSI, OSHA and CGA Standards.  After completion the first fill is done on site.