DIY accumulator

[JScoob]

I posted this on nasioc, but was referred to this site.

I have an idea for an DIY accumulator for cheap and could use some feedback.

I plan to use PVC pipe to create my accumulator housing and use ordinary bicycle inner tubing as the pressure bladder. I would tap the PVC pipe so that the inner tube valve can push through so that I can pump or deflate as I need. I plan to pump the inner tube to about 100 PSI and set my pump switch to provide 110 PSI of water pressure. The inner tube will ideally be the same diameter as the inner diameter of my pipe, and the same length as the pipe - filling as much of the inner cavity of the pipe as possible.

When water pressurizes to 110 psi, this should compress the 100 psi inner tube completely. As the accumulator drains, the inner tube pushes out with 100psi force, thus maintaining 100psi of water constantly, until the bladder is completely expanded.

What do you think?