Need help figuring out how to flush my old system...pics included

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Old 01-23-16, 01:39 PM
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Need help figuring out how to flush my old system...pics included

Hi guys, thanks in advance for the help you guys are awesome.

I moved into my grandfathers house after he passed, and his boiler system is quite old; I watched videos on youtube how to flush it, but my setup doesn't include certain shut off valves that seem to make it an easy job.

Quick background: I started hearing sounds and it turned out my coupler broke on my B&G. While lurking on the forums I kept seeing everyone recommend the taco's. Well, when the pump died it's been about 15 F here for a few weeks and I was in pretty dire straits to get the thing fixed; i just so happened that a dept store near me had a taco on sale; so I got it and installed it. Being the genius I am, I installed it upside down, so right now it isn't running; but I need to figure out how to flush my system so I can install this thing and get heat back. Hopefully you guys can help!


In the first picture you will see a purple line representing the incoming water. The blue arrow shows another pipe that is probably hard to see, which is why I drew it in. It goes into the house. (btw, i'm going to fix the electrical before I do anything else)
First Picture

Second Image


Third Image


Fourth Image


Other info:

Weil Mcclain Boiler PCG-5

Edit: it is a small house, only one zone.


Thanks for the help. I will be standing by to answer any follow up questions!
 
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Old 01-23-16, 02:32 PM
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Why do you want to "flush" the system? Install the pump correctly, refill the system and then test it out. If you have trouble (fifty-fifty chance) then come back and describe the problems. I can see some potential problems in those rather poor pictures.
 
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