Technical Pressure Question

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In fairness the following are slight draw backs:

It is a bit harder to introduce chemicals (such as inhibitors and cleansers).
The system pressure needs checking from time to time.

commercially not hard at all
you use dosing pots to inject chemicals and the system pressure is maintained automatically by use of pressurisation units or automatiic ev's like the one above
 
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Joined
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2,227
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Tyne and Wear
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United Kingdom
Matt,

Very interesting. A few points:

Is the pressurization unit an air and water unit doing both?

no, in this case it only supplies make up water

Why does the EV need to "rock"?

as explained by Norcon (you're right btw its not that complicated its a normal switch and spring loaded mechanism on the foot)

It would have thought the size of an expansion vessel is fixed, so how does it get away with having a smaller vessel?
Do you set the height of the building and volume of the system and the pressurization unit does the rest?

Here is a link to a similar product have a read
 

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