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Post by battle1066 on Dec 22, 2017 23:12:12 GMT
Quite possible then it was a recognised method (in that era), just not very much done in the area that I work in. When you think about it the planet earth is this systems expansion vessel!! Sorry tappy when I say they are combined I mean the combined method with the vent over the top of the tank but still part of the feed, I don't come across many like in the picture.  I've never seen that style in the photo only over the top of the tank style. |
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