I think its an excellent article. The only problem is that the reader doesn't know the writers reputation. Who can you beleive nowadays. Everything is pretty much based on hands on experience, and see it to beleive it.
Opinions.
- maybe further detail on pump head height: For every 90 degree elbow add a foot, for every WB add a foot, etc. etc. Something like that.
- T-line part about being at top. Now, when someone who doesn't know better reads this part, he/she is gonna think to fill the system with the T-line at the bottom and wonder why it's not filling up properly.
Maybe go into explanation that air will travel to the highest point of the system.
T-Line doesn't need a cap on it just as long it's at the highest point of the system. yada yada yada.
- Another downfall of Mercury. (Besides the obvious POISONOUS part) Has the ability to expand rapidly. Needs excessive open space to allow for expansion.
No big deal.
Good job overall.
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