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Saw an ov system today where the feed was a tee off the top of the cylinder coil and the vent was a tee off the bottom of the coil. The last time I queried a set up (H type with vertical pump) it turned out to be not uncommon, although changing it cured the problem. This system as a whole is suffering big air problems and has 'rotted' as Suprima he in less than three years to leakage. I won't get the job of fixing it because the management company will go for a straight replacement (again) which I won't do without sorting the system as a whole. Suprima 100 on 22mm pipework by the way! Anyway, thoughts on that f/v set up please.
