Advise Needed on UP inline CO2 Diffuser

[silentmorning]

Hi Guys, I inteneded to buy this diffuser. See below
http://www.up-aqua.com/00-dm-page/00up_co2-118-1.jpg

but it requires a min 36psi in order to operate.
but if the co2 tank is getting low, does it affect the diffuser performance or it will cause the diffuser stop working?

Anyone can advise me what other thing that i need to take note of?

Thanks a lot

[silentmorning]

Errr.... Anyone here have experience to share?

[Shadow]

Make sure your regulator can provide more than 36psi. Normally I will top up when the main gauge reach 200-300 psi