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DM4: HPR Leak

If your marker is leaking from the HPR. Check the items below. Reference the manual as needed.​

Issue:
Leaking from the HPR:
  • Before removing and disassembling your Hyper2 regulator, you need to determine where the leak is coming from. The top, the small hole in the side, swivel or bottom of the reg. Once you figure this out, remove the reg and disassemble it. Exploded pic of the HPR is included below. Note: All o-rings should be lubed with Dye Slick lube (or other Dow33 based lube).

Leaking from the Bottom:
  • Start by replacing the reg seat Retainer (adjustment screw) o-ring. Lube with Dye Slick lube (or other Dow33 based lube) and reassemble. If this does not fix the problem, try replacing the reg seat (small black plug) within the adjustment screw. 

    • #3 - Seat Retainer (housing) o-ring: 010

Leaking from the Swivel/Body:
  • Verify that your macro line is pulled tight on both ends and is not leaking due to improper installation. If this does not fix the problem, replace the 2 o-rings on the reg body. Lube with Dye Slick lube (or other Dow33 based lube) and reassemble.

    • #6 - Reg Body (Swivel): 013

Leaking from the Vent Hole:
  • Replace both piston o-rings. Use an o-ring pick from the adjustment screw side to push out the small piston o-ring (000) found inside the reg body. When reinstalling, be sure to lube the o-ring first, drop it into the hole and use a q-tip to push it into place. Both o-rings should be lubed with Dye Slick lube (or other Dow33 based lube).

    • #5 - Piston (small): 007 - UR90

    • #8 - Piston (large): 018

Leaking from the Top:
  • Replace both reg cap o-rings and lube with Dye Slick lube (or other Dow33 based lube). Be careful with reassembling the body and cap to make sure you do not damage the larger of the two o-rings.

    • #9 - Reg Cap (large): 020

    • #9 - Reg Cap (small): 015 

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