Best Of

Yes, I switched to a Taco 3 speed, speed two did the trick…

Here is an example of a complete system photo that I was able to match to the manufacturer's suggested design.

You can see how all the components are connected in the big picture

Can you step back and take some photos of the entire system and near boiler piping? Trying to diagnose with those close up photos is next to impossible.

Example:

My tire will not hold air pressure! Is this the right place to add air pressure to my tire? I have been adding air for about an hour (I think) but no air is staying in the tire. Could the valve be blocked?

The photo below will tell more of the story:

the problem is that if it is hollow it might shear off and you'll have to make 2 cuts almost to the threads with a hacksaw or thin reciprocating saw blade then knock out the piece with a chisel. a pipe wrench or big crescent wrench will get it out if it is going to come out.

4 point or 8 (double square) point socket of the appropriate size and a breaker bar. Heat from a torch on the threads may help. If the square part breaks off you are in for more work.