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Matthias Pohl wrote: > > > Scott, busrt disks are used here so that in a fire the disk will blow, > >but in > >reality the tank o-ring goes. In England, they have no burt disks. I do > >not use > >them at all - these things will kill you in the water. > > > >George M. Irvine III > > At times burst disks won't even let you get into the water. Some > six months ago my gf and I were all geared up for a dive at LR, just in > process of locking down the car, when her burst disk gave way. That killed > that dive...bummer:( > > As annoying however was the attitude at several dive shops I > encountered when attempting to purchase spare disks (I have since doubled > the disks on our tanks.) For one, it is quite hard to purchase just the > disk as most shops try to sell a kit comprising the disk, spacer, and screw > for around $9. In contrast, the disk by itself sells for around $2.50; > still more than enough money for a teflon-coated copper disk. There is > really no need, in my opinion, to further extract an additional $6.50 from > a customer by only offering a kit. I eventually was able to buy just the > disks... > But what really got to me was that two shops (one of them was > Divers Supply in Gainesville) were not even willing to sell me a kit unless > they (i.e. the shop) install it at an additional $5. Their reasoning was > that only their highly qualified technicians should carry out such work. > Suffice it to say that I made it exceedingly clear what they could do with > their kit and their business. > > /Matthias > > --- > Matthias Pohl > > ** The Future is All Around Us Waiting in Moments of Transition, > ** To be Born in Moments of Revelation. > ** No One Knows the Shape of That Future or Where it Will Take Us, > ** We Know Only That it is Always Born in Pain. > > G'Quan > ------------------------------------------------- Mathias one of the reasons for dive shops having to sell the complete kit ie disk, washer, plug is that that is the way we have to buy them from virtually all of the scuba equipment and accessory manufacturers. i personally can see good reason for replacing the compressable washer at the same time as the disk but can't see any good reason for replacing the plug/bolt, call it what you will as for the store insisting on installing the unit, it does have to be torqued correctly but other than that could be done by anyone mechanically minded and with the right tools - however the store has to base its policy on the lowest skill level of its customers to avoid them coming back to the store saying "the burst disk you just sold me stripped the threads on my valve!!" also don't forget that many stores will insist that any tank brought in empty (it's really tough to keep any air in the tank with a blown disk) be visually inspected before refilling to ensure that nothing has got into that tank during its empty period (store has no way of knowing how long the tank was empty) while i don't necessarily approve or disapprove of installation charges or mandatory internal inspection in this case i think it's important to see the dive store side of the story. I personally do not charge installation to my regular customers as a concession but to an unknown customer would expect to be able to charge for my labor. being the owner i can modify my store policy as i see fit but an employee of a store must abide by the owner's policies. regards tony phillips
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