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I'm planning to bleed my radiators (haven't done so yet) but I've read that after you do this, you often have to add pressure to the boiler. Can someone explain which valves on my system would allow me to add water to get it back to the current pressure, assuming it ends up dropping? Does my system have some hock up that will automatically adjust the water pressure so I don't need to do anything? I've watched a number of videos on the other steps of the process, but don't see any water valves that are currently closed that I would reopen to add more water. Thank you!


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The blue one. Toggle it a little at a time and watch the pressure gauge.
 

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Discussion Starter #3
The blue one. Toggle it a little at a time and watch the pressure gauge.
Thank you for the reply, much appreciated! As pictured, which is how it's currently operating, aren't the valves already turned on since the valves are both running the same direction of each pipe? Is my system setup to automatically add more water, i.e. there is nothing I would need to do after bleeding the radiators? Sorry for all the questions!
 

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Thank you for the reply, much appreciated! As pictured, which is how it's currently operating, aren't the valves already turned on since the valves are both running the same direction of each pipe? Is my system setup to automatically add more water, i.e. there is nothing I would need to do after bleeding the radiators? Sorry for all the questions!
Doesn't hurt to try. When in doubt, leave it as you found it. Ain't broke now.

If it ain't broke, don't fix it.
 

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If it starts making funny noises, just run. No need to be around when the propane lights. You are a fast runner right?
 

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I'm planning to bleed my radiators (haven't done so yet) but I've read that after you do this, you often have to add pressure to the boiler. Can someone explain which valves on my system would allow me to add water to get it back to the current pressure, assuming it ends up dropping? Does my system have some hock up that will automatically adjust the water pressure so I don't need to do anything? I've watched a number of videos on the other steps of the process, but don't see any water valves that are currently closed that I would reopen to add more water. Thank you!


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If you’re a HVAC tech, you should know. Please tell us why you belong here.
 

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just hook up your air compressor line to the boiler drain and presurize at least 100 lbs to make bleeding go fast..youll be done in no time..
 

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I'm planning to bleed my radiators (haven't done so yet) but I've read that after you do this, you often have to add pressure to the boiler. Can someone explain which valves on my system would allow me to add water to get it back to the current pressure, assuming it ends up dropping? Does my system have some hock up that will automatically adjust the water pressure so I don't need to do anything? I've watched a number of videos on the other steps of the process, but don't see any water valves that are currently closed that I would reopen to add more water. Thank you!


View attachment 128229 View attachment 128230
After seeing the pics of this install I’m definitely going to start using zip ties and perforated strapping on all my expansion tanks. That’s a true hallmark of craftsmanship right there.
 

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After seeing the pics of this install I’m definitely going to start using zip ties and perforated strapping on all my expansion tanks. That’s a true hallmark of craftsmanship right there.
gorilla tape is better...cuts down on vibrations...check out the mess of electrical tape and zip ties on the thermostat line...
 
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