Posted by jtown on October 12, 2001 at 17:28:12:
In Reply to: Re: Blowdown + gauge glass posted by sruli on October 11, 2001 at 10:59:54:
Straight below the glass tube there should be a little petcock, or valve that squirts onto the floor. When up to pressure, you close both of the bigger glass shut-offs, open the petcock or remove the pipe plug if that's what is there. Open the top valve to blow steam down the glass to clean it. Shut that valve and open the bottom one to blow water out with any sediment out from the connection. Try cocks are like petcocks, valves that just blow out into space. There are 2 or 3 mounted next to the glass. If the glass is broken you can shut it's valves and use the try cocks to make ssssure you get water out of the bottom one and none out of the top so you know the water level is in between. Search altavista etc for (+"steam boiler" + residential +maintenance) or such. There are manuals at burnham.com and weil-mclain.com to start with.
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