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Posted by Heatpro on January 19, 2006 at 21:29:42:
In Reply to: Re: Violent Banging/Water Refill posted by Scott on January 19, 2006 at 12:43:41:
The horizontal nipple between the condensate return rising leg and the loop from top of boiler to the bottom should be a close nipple. If it is 10 inches it is far too long.
If the close nipple is too high:
1. it is defying the boiler designers attempts to keep your boiler quiet,
2. because there is not enough steam space above the water line to allow proper separation of water from steam before it rises to the main, which assures banging and losing water too fast.