Bill...
It sounds to me...when the shop exchanged the corrugated inflator hose they forgot/omitted replacing the zip ties that secure the hose to the bottom power inflator...and possibly the top elbow as well...there is no hand tightened...most manufacturers use zip ties...a few manufacturers like Scuba Pro have a proprietary plastic hose clamp with a stainless steel set screw... in the attached photo you can see the ''one way barb'' on the attachment tube end of the power inflator...the hose clamp/zip tie has to be on the bottom end of the barb...
If your BCD has a power dump valve at the top elbow...you also have a cable that runs inside the corrugated hose between the bottom power inflator and the top elbow...if the shop installed a longer corrugated hose...the cable should have been extended as well...
Your BCD inflator hose needs to be thoroughly inspected by a shop tech who knows what they're doing...and not the shop that changed the hose...if they are a manufacturers rep for your BCD...they should be reported to the manufacturer...if their not a manufacturers rep...they should not be selling the product...and reported to the manufacturer regardless...
Your height should have absolutely nothing to do with the length of your inflator hose...
Your BCD should not have been damaged...although it will need a thorough cleaning inside the bladder...
Best...
Warren...
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