Description: For your consideration is this GENUINE SCUBAPRO 2nd stage Regulator curved feet Demand Lever for "S" poppet regulators or upgrade your vintage SCUBAPRO regulators with the white "S" poppet. The Demand lever is brand new and It is priced to sell. The listing for buy it now is for ONE DEMAND LEVER. This Curved feet lever is an upgrade for all adjustable "S" Poppet regulators. If you need more photos or have any questions concerning this product just write me and I shall get back with you asap. Having Problems with your Adjustable SCUBAPRO Regulators? Then read the following: I have a 109 that has a ‘popping’ sensation when the valve opens: it’s like a step change in air delivery when the poppet reaches a certain point. I ‘believe’ it did this with the original, non-balanced poppet. I bought a complete new set of BA parts (latest poppet and lever, etc.) and upgraded the reg. At first it wasn’t noticeable, but about halfway through the dive it stated to come back, albeit much more subtle than before the upgrade. I did not change the (clear) diaphragm and will try swapping with my 250 to see if that changes anything. I should mention that I also tried gently inhaling on un-pressurized regs and still notice the popping only on the one upgraded 109. It’s much more pronounced that way but obviously the forces are really different.If the problem persists across poppets, chambers, levers and springs, then I’m thinking it’s either the diaphragm or the "lever hole" in the air tube? The popping reminds me of pushing on the lid of a cookie can or a tin, where it starts to deflect quietly and evenly with pressure, then pops into a different position at some point. So maybe it’s the way the diaphragm collapses under pressure? Or, maybe an edge of the lever is getting hung up on a burr in the air tube? Any thoughts or similar experiences? SOLUTION: The problem is a small ridge or indent in the surface against which the lever feet work, inside what you call the "air tube". That is usually called the "barrel". You must carefully smooth flat that surface using a very thin grain file. One of my oldest 109 also developed that problem. It is caused by many years of work of the old lever with feet having a sharp edge. The new lever 11.250.141 with curvy feet does not cause the indent/ridge to develop, as during its action it "rolls" over the brass surface, instead of just rotating on the sharp edge as the old lever was doing. Angelo Farina, PhD FIPSAS/CMAS Instructor (3 stars) Marine scientist (underwater acoustics) Full Professor of Environmental Applied Physics at the University of Parma, ITALY Angelo Farina's Home Page
Price: 17.99 USD
Location: Slidell, Louisiana
End Time: 2024-12-31T20:59:03.000Z
Shipping Cost: 5.9 USD
Product Images
Item Specifics
Restocking Fee: No
Return shipping will be paid by: Seller
All returns accepted: Returns Accepted
Item must be returned within: 30 Days
Refund will be given as: Money Back
Brand: Scubapro
Custom Bundle: No
Model: Scubapro demand lever
MPN: 11.250.141
Country/Region of Manufacture: United States
Modified Item: No
California Prop 65 Warning: no
