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The_Specialist gravatar image
RedR

Krischan,

I have just had a word with colleagues who know a lot more about pumping than I do and they agree that there is no reason why this should not work, although there will be various issues with design and maintenance that will need some thought. The energy consumption should be just the same, you are only storing it in a different way (compressed air instead of gravity) and the size and number of vessels should not matter within reason, provided the total capacity is correct. Maintenance may be an issue, but a suitable maintenance could most probably be devised. The most important operational consideration will be preventing frequent pump starts at periods of low demand. If you need any assistance with design, please let me know and we will be able to assist.